rffr... personally i think this video is really helpful.. I happen to climb, run and surf as well as mountain bike, so putting on a shit ton of useless muscle just makes things harder when it comes to my other sports. I have also damaged my rotator cuffs.. wait for it.. 5 times. 3 on left shoulder and 2 on right, been on a spine board and unfortunately more.. in other words couldn't care a less for what has happened to you in the past. the stuff in the video seems perfect for helping me recover and sort my shoulders out, as well as strengthening the stabilizers which have been well and truly mucked up by sport specific training. so please stop trying to rip into his videos when they are actually useful to people. (oh and from my injury comments, please dont think of me as a tough guy as i really dont want to be put into that category, cheers). One last point.. if you look at his comment under the article he explains it and is right. my shoulders are not weak, in some respects, and that was fine until things got way too out of balance and now i find that if i want to improve at climbing (completely unrelated to mtb funnily enough) i NEED to sort this in-balance out or i will damage my rotator cuff yet again. now theres a paragraph more of stuff you will just ignore and try to rip into :P cheers again mtbjames for the video.