Any theories as to why some implants take way more pumps than others ?

[merrix]

Here's a guess as to how a guy can get to full erection in less than a half-dozen squeezes of the pump bulb: He is starting partially inflated? His tunica is thick-walled and the implant does not require the full contents of the reservoir to hit THAT limit (that is, the inflatable tubes never need to reach their full diameter to make the penis rigid)?

Would anyone care to check this math?

No need to check the maths. Empirical studies (by merrix) proves your numbers wrong. I did take an original, authentic TItan Touch pump, filled it completely with water, poured it into a 100 cc container and repeated till the container was full. It took me 40 repetitions to fill it.
So one pump's absolutely theoretical maximum is 2.5 cc.
This also mathces what I have read elsewhere, that a pump's volume is around 2.5 cc.
And as you say, that will not happen in reality. I think even your efficiency ratio of 0.9 is optimistic.
But let's say it is 0.9, then you can move 2.25 cc of saline with every pump.
And that means it takes 44 pumps to move 100 cc, which I suppose some guys have in their reservoirs. If not, nobody would ever get a 125 cc reservoir, everybody would have the 75 cc versioin...

Otherwise, I agree with your comment that some guys probably start semi-inflated, and hence don't need a complete inflation when they inflate their dicks.

[Evinrude]

Otherwise, I agree with your comment that some guys probably start semi-inflated, and hence don't need a complete inflation when they inflate their dicks.

True but remember my surgeons pump numbers were based on the first ever inflation of each patient... I doubt he "primed the pump" beforehand

[merrix]

Otherwise, I agree with your comment that some guys probably start semi-inflated, and hence don't need a complete inflation when they inflate their dicks.

True but remember my surgeons pump numbers were based on the first ever inflation of each patient... I doubt he "primed the pump" beforehand

I am 100% sure a Titan pump volume is 2.5 cc - because I measured it myself.
According to your doc, with his 17 pumps, nobody ever needs more than 43cc reservoir size.
If he ever installed a reservoir larger than the minimum size he is full of shit.
And according to him, AMS and Coloplast are clueless to even promote these reservoirs on the market.
And Eid, who promotes the importance of using the least amount of saline and the smallest size reservoir possible, is retarded then according to your doc since he frequently installs the 125 cc reservoir.

What your doc says just doesn’t make sense.

[Evinrude]

What your doc says just doesn’t make sense.

The info is coming second hand from one of his RN's... today I will try and make contact with his other RN to see if I get the same feedback.

[Evinrude]

What your doc says just doesn’t make sense.

The info is coming second hand from one of his RN's... today I will try and make contact with his other RN to see if I get the same feedback.

[Evinrude]

What your doc says just doesn’t make sense.

The info is coming second hand from one of his RN's... today I will try and make contact with his other RN to see if I get the same feedback.

OK..heard back from second RN..

You're not going to like this...

He says he's been doing this 32 years... hundreds of implant patients he has activated, and has never pumped, even on (rare) 8" penis, more than 16 pumps to get to max erection !

He figures after a year of cycling...maybe another couple of pumps possible. Anyhoo, don't shoot me, just the messenger.

[Lost Sheep]

What your doc says just doesn’t make sense.

The info is coming second hand from one of his RN's... today I will try and make contact with his other RN to see if I get the same feedback.

OK..heard back from second RN..

You're not going to like this...

He says he's been doing this 32 years... hundreds of implant patients he has activated, and has never pumped, even on (rare) 8" penis, more than 16 pumps to get to max erection !

He figures after a year of cycling...maybe another couple of pumps possible. Anyhoo, don't shoot me, just the messenger.

I believe you. I just want to know how these RNs achieve full erection (if they indeed do get ful rigidity - I believe they do, but just have to ask because of the mathematical possibility) and if they are doing it with full wall-to-wall cycles of the pump bulb (and if their squeezes are typically fuller than the patients' squeezes).

Those two questions might be vital to understanding the discrepancies described and debated in this thread.

[merrix]

What your doc says just doesn’t make sense.

The info is coming second hand from one of his RN's... today I will try and make contact with his other RN to see if I get the same feedback.

OK..heard back from second RN..

You're not going to like this...

He says he's been doing this 32 years... hundreds of implant patients he has activated, and has never pumped, even on (rare) 8" penis, more than 16 pumps to get to max erection !

He figures after a year of cycling...maybe another couple of pumps possible. Anyhoo, don't shoot me, just the messenger.

I neither like nor dislike it. In some way, I don't give a shit. I can get my implant as hard as I want and I know what it takes to get there. So in some way, this post, as many others here, doesn't really matter to anyone.
This is just kind of interesting. How is it possible that you claim two doctors say something that I think I can easily prove wrong? What is the catch here?

One thing is that you say he said "to get to max erection". That doesn't necessarily mean pumping till the pump cannot be squeezed anymore. Max erection is maybe for him to pump till the point where he sees that the dick gets full, all crinkles are gone, etc. That could be the explanation.

I still think you are letting them off the hook too easily. They keep saying this is the case.
Ask them some questions to poke holes in their story then. (Or to explain where I go wrong.)
Ask them if it is correct that a pump contains 2.5 cc.
If so, tell them that in that case all the saline they can move with 17 pumps is 43 cc.
If so, ask them why there are 125 cc Coloplast reservoirs on the market.
Ask them if they have ever installed one sinlge reservoir larger than the smallest size.
If so, why? Because then their story just doesn't make sense...

Till then, I keep saying your docs are either full of BS, or we have something else messing things up here which none of us has thought of.

[Bushpig]

No real answer to that one. All depends on how deflated you are at the time.
If i get ' everything ' out when deflating ( By squeezing my shaft ) i would need at least 40 - 50 pumps to inflate. Sometimes i dont fully deflate and only need 15 pumps - it all varies.

[Evinrude]

One thing is that you say he said "to get to max erection". That doesn't necessarily mean pumping till the pump cannot be squeezed anymore. Max erection is maybe for him to pump till the point where he sees that the dick gets full, all crinkles are gone, etc. That could be the explanation.
Till then, I keep saying your docs are either full of BS, or we have something else messing things up here which none of us has thought of.

They define max erection as pumped up enough that penis shaft near base feels like normally inflated bicycle tire...enough for intercourse.

Re full of BS....ask yourself why would two RN's at one of the best hospitals in the world (Mayo Clinic, Jacksonville, FL) make up numbers ? No skin of their back if they told me 60 pumps was average. In fact I kinda wish it was, on the theory my 5 pumps might increase quite a bit and my dick grow a couple inches someday ! (welcome me to Fantasy Island LOL..) To be honest I was kinda bummed when the first RN told me 14 pumps the max he’s ever needed to activate a patient for that reason !

If you pm me I will give you the Mayo urology department phone number and their names. Dunno if they will talk to you not being a patient but maybe...I think one of them would, as he loves to talk dicks and implants !