Well I got my new PTFX a couple days ago so I can share it. I like the feel of the Carbons but I wont call it a huge difference. The Ptfx came in at 59@30 and comparing it to my PMA which is 63@30 . Id say they are in the same category perfomance wise. I think it would be a performance benefit on a lighter bow. I will know more after a summer of getting familiar with it. For now it shoots like a widow….