Never base all patient's recovery outcome and potential from one dude's journey.
I love medium drink of water and feel bad that he feels he is not recovering well, but he also legthened over 7 cm with surgeon who is less than elite.
As a current patient of donghoon lee who is currently at 4.4 cm in LON tibias, my condition is fantastic and see no reason why I can't recover well when i'm done legntheing. Most patients here get average 6 cm in tibias, and I have met a few patients who are fully recovered and they are all in great condition. PT here is fantastic and my PT says many of his patients who lengthened around 6 or more have no problem snowboarding, dancing, and climbing etc.
Surgeon skill is very important, and you get what you pay for. That's why I chose donghoon lee, who has the highest tech in south korea, and renown skill in cutting the bone, etc.
Everyone is different, and not everyone will have the same great outcome. But not everyone had an elite surgeon, with elite PT, and a great rehab ethic, etc. so many factors are in play here. Don't base entire LL outcomes on one dude. Look at those who recovered well, those who recovered not so well and see what the differences lie. And don't fade the best surgeons for LL, they are the most expensive for a reason and they are worth it.