I've been going over it on paper and such, not testing (not in beta or on ptr) but I'm starting to think impale may not be worth getting.
I'm assuming the impale build is 12/8/51 with the current talent build.
I'm almost convinced you can take the 5 points out of arms and get imp revenge for 20% more damage/threat and get puncture to throw out dev more often.
But here's my kicker, is HS with the higher crit coupled with impale going to be pulling more threat than dev?
So question is, burning the points to get impale worth losing out in a few more prot points? Threat wise that is.