1. My right or dominant thumb does not quite reach the magazine release. I am able to use my non dominant thumb to release and then retrieve my mag and load. Is there any guidance as to using my master grip thumb as opposed to the non dominant? 2. When I do reload, I cannot release the slide with the master grip thumb. I usually have to use the non dominant again. I am getting small arms training and am not totally unfamiliar with guns as I was raised shooting and spent time in the Air Force remaining qualified on the M-16 and .38. Just to let you know of my experience level with regard to your replies. Thank you for your advice in advance!