There have been a few others recently along the same lines recently. Some are commercial, some free designs. I suppose the proliferation comes from the fact that this grip - high finger grip with a flared palm heel is so very effective that it there are so many variations on a theme.
While I am flattered by the comparison to my Gamma design, it's definitely not the Gamma. The combination of features that defines the Gamma are:
- A wooden boardcut;
- The overall shape that looks like the Greek letter gamma;
- The side curve that fits the palm like a natural fork, similar to dgui's PFS, not the presence of a bulge in itself;
- The signature deep plunge;
- The fork shape, particularly the tips;
- The Narrow shaft; and
- The shape of the webb that works with the wood grain to increase strength at this critical point
So you can see this is quite different.
I think the distinctive features of this design include:
- The repeated use of the same sized circle for webb, heel, shaft and finger supports;
- The hole saw production method, with square edges;
- Straight, ungrooved band attachment points; and
- A high swell that fills the cup of the palm rather than abutting the heel of the palm.
I would love to see or read how it shoots. I think it has good potential. it it proves a good shooter, other should build this shared design to see how well the high palm swell works. I have often wondered about using a rubber ball in this position. If the production method proves easy to implement, then it could save a lot of time. Given that the circumference of two holes on each side overlap the centre-point of the other, I would consider some kind of a jig, perhaps using a second board below the work piece or whatever works.
Good work and thanks for sharing!