9.5 stiff shaft driver vs. 10.5 reg shaf driver

[mike c.]

i'm 59 yrs. old, recently got a tatlor made 9.5 stiff shaft driver. i can't seem to get it up- hitting "worm-burners". my old calloway 460 big bertha, at 10.5 degrees and regular shaft does just well. i'm hesitant to "mess" with adjusting the heighth of how high i tee the ball. am thinking, anyway of going to regular shafted irons as wel, as my swing has slowed down considerably since having total knee replacement surgery. i'm left-handed, surgery was on right(lead) knee. ii'm thinking of returning "burner" driver and trading up to a new set of regular shaft clubs. at what point in a middle-aged golfers life does he make the decision to switch from stiff shaft to regular shaft? i'm 6'3", get plenty of distance, but since knee surgery am less accurate. help!
mike c.

[Bobby_Eldridge]

Did you ever get a new driver?

Bobby