I have a 10.5* (set to 12*)  910R2 with an A flex ilima 61 shaft.  Both the feel and the trajectory are not to my liking and I'm considering a replacement shaft.  I'm 82 and a good drive goes maybe 170+.  IYO  would an L shaft Bassara series 40 or 45 work for me or should I consider an AD BB5, R2 flex?  The only thing I have left from my single digit days is a smooth swing.