I'm currently using my the PDR standard and I'm not getting enough power (oddly) on my groundstrokes. I'm using VS 16G in Mains and RPM Blast 17G in the crosses at 54LBS. Do you think switching to the + would solve my problems? And is adjusting to the extra half inch of length hard? Appreciate any opinions from anyone who has had the PDR standard and switched to the + version, or vice versa Thanks!