Sorry to say this is not revolutionary...anyone that understands how the hand flexes and the angles to coordinate such hinging can accomplish this...much of anything today is merely being marketed as revolutionary and earth shattering....and it's not.

I would be willing to bet that the people who are having positive results from the Bill Hall Tri-Grip system are people who were never properly fitted to begin with.

Maybe that is a plus to Bill's system.  It may be providing a better way to fit people.

In the end it comes down to the experience of the ball driller regardless of what system they use.  I assure you, in time, someone will get fitted wrong with Bill's system and there will be posts on this site about how bad it is.

Et all,

I have been bowling 40 years and have some success... highest average 243, highest series 878, won serveral state and city championships, never not caches in the Nationals. I have also had a proshop for several years although not recently. However, Ive been to several instructional classes, ball drilling/layout clases, Mo Pinel, IRTC and Kegel multiple times.

That said, I am not egotistical I just want to learn. And what I learned from Bill Hall in 25 minutes on that video is something new and what I believe to be industy changing. Will it be, depends on the users. Just because it is good doesnt mean it will be accepted.  That said many of the points in most posts I have read have some points which I may contend is true. And after learning, measuring and trying I could have and probably should have invented it years ago. But he put the pieces together and that is whats new. It is even close to what I invisioned from seeing the pic of the ball with lines a few months ago.

All the nay sayers haver some valid points and Im not suggesting that everyone pay for the video. But not to try something because you dont want to or believe something when you dont even know the details seems a bit fixed on the current and not the potential for the future.

Im in my mid 50's and I look for everything. Sometimes they are good and others they are not. And despite I am not a proshop owner and more, I purchased this for me, my knowledge and understanding. And that is not typical that bowlers puchase something that proshops would be primarily intesested in. But, ill say it again, Im glad i did and would do it again. And I believe that getting better means staying current on as much as possible.

I was not trying to offend anyone so if you are please accept my oppologies.

    So where is this posted online?

When I started drilling in the 50's, I had a personal system I used.  It was a variation I went to off of the old Centerline drill.  Layout the ball on the normal centerline and drill your preferred thumbhole on centerline.

Finger holes laid out on centerline with your preferred span but put same span on ring finger as middle finger.  Now scribe  new centerlines for drilling the fingers.  Each finger drill has its own centerline.  This line runs from center of each fingerhole to a point 1" to the right of center of thumbhole for RH.  Opposite side for LH.   Drill finger holes at zero starting with the middle finger.  Drill ring finger parallel to the middle finger to keep the holes from running together.  Allow a normal span for middle finger.   All of these so called "offset" drills were thought of long ago.   Brunswick even patented their "offset" drill back in the 40's.  The only thing an offset is, is a change of directional pull of the fingers.   The only way this will help your game is comfort. No miracles here.  Done right, with all other things proper, it will give you a comfortable grip and release on  the ball.   This grip, done correct with proper "setting"of the thumb and "fishhooking" the fingers can give you the grip and feel you need.   PS...A repeatable way of beveling the thumbhole is kind of critical also. There is a system for this also.   Luck