I tried that crazy-ass monk crit build and it's been fun. I had to use a shield with 9% crit till I get another good 1H with LoH though. But aside having to move from terrible ground effects or sentries, this has been treating me well.
I'm running a similar build based off this post:
http://www.diablofans.com/topic/54433-monk-inferno-guide-updated-for-103/page__st__0
Major differences are that you're supposed to stick with the crit shield and you don't use that fire AoE rune on evasion.
I would imagine the extra LoH/dodge could make a decent difference, and the theoretical extra DPS sounds great too. I have 8.5% crit on my shield I'd hate to lose though...have ~23% and all those cyclones are pretty awesome.