p1s8d2 wrote:9. I have the LGX. But, my research confirmed the Coloplast can increase girth only over time.
Not so. I as well as others "gained length over time" with a Coloplast Titan. Both the Titan and the LGX both have maximum lengths to which they can expand. The LGX achieves its maximum length by being able to stretch lengthwise as it expands. The Titan (and the AMS CX), do not stretch lengthwise as they expand. The only way you "gain length over time" is if the maximum length of the device that is installed is longer that the initial starting size of your cavernosa. Or, put another way, its oversized to some degree. If its oversized it will put pressure on the ends of the cavernosa when its inflated near the maximum. Initially its length will be limited by the ends of the cavernosa. If the tissue is capable of slowly stretching more over time with theraputic pumping, then you will see length gains. These will stop either when the tissue has reached its maximum stretch, or the maximum length of the device is achieved, whichever comes first. If the device is not oversized (compared to the initial size you have) you will not see length gains. Well, sort of. After surgery, when you first pump up and its sore, you may not even get as far as that "initial size" due to soreness, scar tissue that forms post-surgery, etc. So even then as you start pumping you may see length gains as part of the recovery process as scar tissue breaks up and as the tissues toughen up and are less sore.
Plenty of docs with experience with both LGXs and Titans (or CX's) will tell you there's not much difference in final erect size between the two, assuming they are both installed correctly. My Titan was explicitly "oversized" by a small amount (about 1 cm) and I did see about 1/4 inch of gains in length over about 3 months.
The biggest difference between the Titan and LGX is that some docs are more comfortable oversizing the LGX than they are with the Titan and CX. If any unit is too large, more than the penis can handle, the result is not more stretch, its an "erosion" if it goes on long enough, and probably pain when erect before that. I think the theory is that the LGX, because of the lengthwise stretch, puts less pressure on the tips when its length is limited by the body, so if its oversized by a little too much, its still ok. AMS in their operating room manual, recommends sizing the CX to the exact measured length of the cavernosa during surgery (though in my case with my Titan, for example, the doc oversized it by about 1 cm more than that). They recommend (or some argue they don't recommend this, but simply show it as the only example of how to size) picking a nominal size 2cm less than the comparable CX when placing an LGX. Because of the lengthwise stretch of the LGX, that translates into 1-2cm of oversizing when considering the maximum size of the LGX. By this I mean that an 18cm LGX has a nominal or unstretched length of 18 cm, but a maximum size of 18% more, or 21.25cm. So if the measured size is 20cm, they would recommend a 20 cm CX and an 18cm LGX (which could stretch if the body allows it, to 21.25cm). Docs don't have to follow these recommendations, and I assume some, or even many do not. A doc, like mine, who judges there is stretch beyond the measured size, could size a CX or Titan to 21 cm, in my example, and achieve the same potential as the LGX. Another doc using an LGX might oversize it by more than AMS recommends, creating still more possibility for stretch.
"Length gain over time" is all about sizing, and not quite so much about the device.