Last Month Joe Slowinski introduced a new way to fit and drill a bowlers grip. He is calling this method the Anatomical Drilling Technique. I have tried this technique and it has a lot of merit. In my experiences, the ADT is closely related to another fitting technique commonly called CLT (Center Line Transposition). Both CLT and ADT attempt to provide a more comfortable fit by accounting for the fact that fingers are not necessarily parallel with the grip center line.
From a bowler perspective, your thought may be "I don't care just give me the best fit." But fitting is an art based on a few important principles. There are good fits and there are certainly bad fits. I will even say there are better fits, but that is as for as I willing to go. As I Pro Shop Professional working with a customer, I cannot know what the customer is feeling. I can look for stress. I can look for a clean release. But I cannot feel what the customer feels. For the better fits, communication is critical. The more a customer can communicate their feel, the better I can fit the ball to them.
Here are the principles that a Modern fit is trying to achieve. I say modern, because in the past 10 to 15 years a lot has been discovered about fitting a bowling ball. The days of excessive reverse in the thumb and over stretched hands are gone.
The goals of a Modern fit:
- Reduce hand and joint stress
- Account for more or less flexibility in the fingers and thumb
- Allows the bowler to swing the ball with out excessive grip pressure
- Allows for the bowler to execute various hand positions and releases successfully
- Allow the bowler to bowl without pain, calluses, or bruising.
If your ball does not fit the way it should seek out an IBPSIA Pro Shop Professional and have a grip discussion. Don't be afraid to experiment a little, the better fits are often a process of bowler feel and communication.
Also even if you have a good or great fit, keep in mind that your body changes over time. You should have your grip checked at least every couple of years.