I have a gen 4 17 that I use with no backstrap. I have relatively small hands IMO. I also have a gen 3 23. I shoot the gen 3 23 better than I shoot the gen 4 17. Has anyone with smaller sized hands had an accuracy issue where they needed to put a backstrap on their gen4? I'm going to add the medium strap for the range tomorrow but I was just curious if anyone has had a similar conundrum. I think I should be able to shoot a 9mm better than a .40 but this does not seem to be the case.