I've been hitting a draw/hook for 10-15 years so when I put a medium Jumbomax on my Taylormade Burner last week I was sure I would see the dreaded fade/slice because of the "loss of hands"... Surprise!!! I hit 140 or so drivers then played 36 holes the past two days and found out two things--- I can grip the club much less tightly and still hit a slight draw. The biggest difference that I wasn't really looking for, was added distance. I'm 60. In fairly good shape and average around 255 off the box, so I was very pleased with another 12-15 yards.
Shots almost never hook badly with these grips and really seem to go straighter and farther... Think I'll keep them -- at least on the Driver.