Hypertrophy and especially hyperplasia have a limit.
But if you look at DLD and other great gainers on this and on other PE boards, you'll see that the limit seems to be pretty damn high.
Or another example: Some African tribes where some dudes have like 13"-15" flaccid dicks. Obviously they can't use their dicks anymore, but it still shows that everybody can reach his goal size. And with [words=http://www.mattersofsize.com/forum/showthread.php?64036-My-Best-Work-Ever-Penis-Enlargement-will-Be-Changed-Forever-gt-gt-Gain%20inches%20with%20SRT-Theory-and-Routine]
SRT[/words], we know exactly how to do it in the fastest time possible.
In my opinion, everything above 8" BPEL and 6" MSEG is just Ego-Enlargement. But that's ok, it's interessting to see how far we can push it