This modification to my instrument was inspired by some health problems I was having. You can read all about it here . See a medical professional if you are having problems.
Every case is different.
The purpose here is to give one case study and show that how it was solved. Your problem, and solution, will likely vary. I had to repair the wood handle to take a wood screw for a new strap. You can read about that repair separately. Here is how I got into trouble.