I used to use the bands very regularly, and then I injured my hands last year in an unrelated way. As I built my strength back up, I failed to use the bands. I just re injured my hands last week, and my grip strength is noticeably down. Looks like I need to go back to the bands and not forget... I'm not saying the bands would have prevented injury, but I think they do a good job of balancing things out to be safer. Also, I find a warm up to be essential now, and I've been skipping that lately. I think that has a lot to do with me reinjuring them.