I am a 6.4 handicapped with a 915 D3 with the rogue black 70 stiff shaft my swing speed varies from 118-119.1. My average driver carry is 257 with a roll out to 278, the problem I'm facing is my golf ball RPMs is between 3300-3400 and I already play the Pro V1X my typical driver flight is a slight draw, would upgrading to a high quality shaft help reduce my RPMs?