Anyone make the change recently?  I was fittted for a new driver 2 years ago and switched from stiff to regular, added more distance and accuracy.  Just demoed a Titleist T350 with AMT Red R300 shafts and wow.  I was playing AP3 with AMT Black Stiff.  The T350 had a higher launch and more distance.  Made the change immediately.  Looking forward to better scores in the future!