Wow, this seems pretty controversial. I had the problem with an SKB sporting gun, which has a pretty tight grip. I used one of the Galazan gizmos and it did not hurt as much. I was using the gun for skeet. I then purchased a Krieghoff which has a lot less thighter turn on the pistol grip. THe problem went away. Last year I stated using gloves for shooting skeet due to sweaty hands. I have been shooting a little sporting this year and got the SKB out and started using it for that and do not notice it at all. I suspect that there are different reasons and different answers according to the individual.
I shoot a straight grip and double triggers on my hunting guns and never remember getting hit in the bird finger. I have never concsiously gripped the gun in any particular way. WHen walking in on a dog on point I still keep my index finger behind the guard until I mount the gun, as was mentioned above.
to surmise.......I really have no clue!
