What shafts do you have in your P3s? I have SPB, X-Stiff soft stepped once, in my AF 302s and they are perfect. If I go with the P3, I'll probably go with the Modus 125, X-Stiff soft-stepped once.
Had a set of PXG 0311/0311T combos and switched to Epon Personal 3's because I liked the black- zero performance gain/loss between the two. Those who have hit the Epon's, I'm very surprised you thought them feeling hot. I have yet to experience that on any of the clubs. I was nervous with the undercut as well, but the sound and feel is simply Epon to me and much different than PXG's. PXG is distinct due to that elastomer. Think if callaway made a forged hybrid I guess is closest for those who haven't hit them. I loved them and would go back if I had to and be just as happy. It would be extreme dark and 0311T all the way through though as that would be closest sizewise to the P3. The long irons in the P3's are a dream to look at and hit whereas 0311 is god awful offset and blade length.
Modus 120 X-Stiff and then Modus Wedge G/S/L