I am bigger on practice than on the ranger plates for pistols. I guess if you were wearing heavy gloves they might have a purpose. I see more cons than pros to them.

The best thing for reloading/loading under stress is plenty of practice. I practice combat reloads and tac reloads with empty mags and weapons. Very honestly you fight like you train. I have found that I will do things without making a concious decision to do them because I have trained that way. Thats why it is important to train correctly.

I spend at least 4 times as much time doing dry runs with weapons manipulations and dry firing as I do on trigger time with live ammo. It makes a world of difference. When I am doing live fire excercises its much more productive.