Whats the best? They're both 4340 chromoly. Alloy USA shafts seem to have a better finish quality, but are a little more expensive. Alloy USA has a 10 year no questions asked warranty, Yukons a lifetime warranty on everything but the ears. Both have people who swear they are great, and plenty of horror stories as well. For the guys who dropped the coin on this stuff, what made you go one way or the other?