ok i just put p30s on my p72 rods and it seems like there is a lot of play between the piston and the rods as if the thickness of the p72 rods is less then the pr3 rods. is this okay??? the pr3 rods dont fit in my p72 pistons. Am i supposed to use p72 rods for p30 pistons in my gsr? -thanks -edit i just read something about it. is there anway i can use p30 pistons in my gsr?? can i use the pr3 rods?