I have a Glock 45 and a Glock 43x. My 45 works amazing, can shoot on it all day, 1000 rounds and no problem. My 43x had an issue where I was getting blisters and the trigger just felt uncomfortable.
I did some minor research and found out many had the same issue I had. What they were recommending, many times over, was to replace the trigger shoe with one of Johnny Glock’s modified and upgraded ones for $20. Never have I ever spent a better $20. Now I can shoot all day, the same as my 45, with no blisters on my trigger finger. It got to a point where my accuracy was suffering because I kept readjusting my finger to stop the uncomfortable pain. I can’t believe I waited so long, best investment I’ve made so far.