Can't answer you yet, but been playing a lot in the last few weeks with the P1. My usual setup in the 400T is VS/Beast, but I've been playing full poly with the P1, as I had two gut jobs snap after only a few hours of play. Full poly works well in the P1. Beast is one of my favorite polys - I can't see how it won't work well. Post back your results. I'll give it a shot soon.