The few times i've bothered to shockwave stuff for the hell of it, it does land.
I own and use a macc gsword, no idea if that actually helps or not. However you'd be stupid to use an AE ws and throw away your option of supertanking adds with a healer around and just spam resolution on 1 target at a time.
TBH if i wanted to sleep a bunch of stuff on drk, I sub SCH and manifestation sleep II everything.
Works just fine on aby/xp/trashmobs.
Go back to spamming reso, shockwave sucks even if the sleep landed all the time.
