I am 65 and I also have very bad back problems. As long as I am standing straight I am fine, but if I need to bend or drop to the ground to shoot it becomes an issue. We had a stage at our local club were we needed to shoot one round on each target reload and place one more shot on each target. I was shooting my PCC GMR-15 and didn't have my Techwell magwell at this time. I put the first rounds down range then made my reload shot one shot and the magwell fell to the ground. Since I only had two mags loaded at the time I needed the one that fell to the ground. A stage that would have taken 12-14 seconds took 25 seconds to complete. I make sure I always have enough mags with me now. I enjoy competing and do not want to give up shooting, but I have cut back some.