Hey all,
So I've been doing some more experimenting. I tried cutting the checkering grooves with a bigger cutter. This makes the individual checkers smaller and makes for a more aggressive texture. I also tried a new diamond checkering pattern. As far as grippiness I'd say from least to most aggressive: original checkering-->diamond checkering-->new wider groove checkering. I also changed the angle of the mag scallop to be more inline with the angle of the thumb.
I'm going to send some out tomorrow to test the fit on a few different 97s. If I hear back that the fit is OK now on their guns, I'll be ready to start selling them.
Dave

Chocolate brown paper micarta diamonds


Black linen micarta with new wide groove checkering


Brown canvas micarta wide groove checkering

Closeup of diamond checkering, brown linen micarta