switch and bluff land rate

hi all,
i'd like to know which should be the % land rate of dagger skills bluff and switch on retail,against a 76+target with ch buff,so ms4,magic barrier and resist shock,

just to figure it out.

thx.

I'm not sure, but i think bluff will be almost 65% and switch... hmmm... maybe 50%... that's just my opinion :)