I do not find it hard to serve with
I can't comment on the PB, as we have one Organix and one DNX. Given they are virtually identical to play with, I would guess the PB is too!
I know a 5.0 guy who uses the PB 4 stock standard, wins more than he loses.. (he switched because of arm soreness from his old Pure Drives)
5.0 all courter. Back with the Dunlop Bio F2.0 Tours fro the summer
"Tennis isn't easy" - Corners