This posts concerns the photo attached (right). The release aid is my #1 release (has been for a very long time). When I bought that release the spot that my thumb rested on was a simple post (in photo just below small barrel). Then at a Las Vegas Trade Show I bought a number of Tom Thumb adjustable “barrels” to adapt the trigger to a somewhat larger size. This was just before Carter came out with their own version, the “Adjusto Trigger,” so I felt I was very much in the avant garde.
Recently one of my students made me a trigger barrel much larger than the Tom Thumb version. It is 1.0˝ wide (25 mm), as compared to the Tom Thumb version (the purple one in the photo) which was 5/8˝ wide (0.625˝ or 16 mm). I noticed immediately the different feel associated with this new, larger thumb barrel which got me to thinking.
When encouraging a “surprise release” approach to release technique, the standard instructions are to tuck the trigger back away from the tip of the finger/thumb. The argument is that the very sensitive finger tips can feel the position of the trigger as it moves and thus lead to anticipation in the form of flinches, freezing, etc.
My thinking is that the nerves associated with those finger- and thumb-tips are pressure nerves. (The pain and temperature change nerves don’t get engaged.) The force required to trip the release aid is built in with springs and whatnot. But spreading that force out from a narrow pin, to a small barrel, to a much larger barrel, I have created small and smaller amounts of pressure on the trigger. This diminishes the feel of the trigger on the skin, which should be a good thing.
So, if you coach release shooters, or are one, and you haven’t tried a larger barrel or a “shoe” trigger, give it a try. You may like the results.
Note I am never satisfied with the “Gee, I like it better” approach to equipment recommendations. I much prefer for there to be reasons as to why such changes might be advantageous. Still, you do have to try things out to see if they work for you.