TargetTalk

Is it allowable to have a radius between the vertical part of the grip and the palm shelf - see diagram attached. Sorry about the blank pages, look at last page.
1st image as shown in rule book; 2nd image shows small radius; 3rd image shows larger radius.

There is no restriction on the size of the radius you are concerned about. The important thing is that the curve has to finish level, or downward. It can't arc back up as it goes outward from the grip.