Come on cal, do you honestly think that Yukon (Or anyone) would seriously do a testing like that and do like a D60 shaft against a D30 shaft?
All I can say about all you people saying what you are about yukon in a negitive way, is that Yukon has clearly shown (not only in this video but more so in my personal experience in teh last year for sure) that they have the best customer service to start, and that they have the strongest shafts. Peroid.
I have dealt with warranty issues with other companies, and unless you KNOW someone at those other companies, good luck with a hassle free warranty. They all want the shaft (or other part) back in thier hands, then depending on who you are and how you approached the issue with them, they may just take care of it for you or they will find a easy issue why its not covered.
Yukon will just warranty the shaft without question or hassle. Not to mention if you go with thier hardcore series (about 1/2 the $ of the other company that offers USA made shafts) you get a refined and revised for the better, Warn shaft. They bought Warn and all engineering drawings and methods, then refined those for the better.
I really thought it was clear and easy to see in that video, what it was made to show. But forgot that people at times dont care to see the obvoius and still try to rebutle the obvious, how ever possible.