Not only what Forcelink said, but you just said you don't mind popping DP on cd, yet the cd for DP is 1 min. If you are popping all three of those at the same time, it means you only get "semi-decent" return on 1 out of 3 DPs.
You'd be better off using H solace on all of those fights as it has more MP5 return than the other two trinkets you listed by a lot.