Was struggling off the tee so had a quick lesson and can't believe the change the instructor made to my 917 driver. Went form A1 10.5 to D1 9.75 and surfit weight to draw bias. Normally I only carry 225 but today after lesson I was able to carry a burn at 244 yards multiple times with total distance 260 +. Hugh drive for me, hugh smile too.
Stu