One suggestion if you buy or make a trigger block - practice, practice, practice. I've been carrying about four years now, and recently bought a Saf-T-Lok for my Glock Model 23. I had not been carrying with one in the pipe because I felt uneasy. So, I figured, hey, I'll get the best of both worlds by keeping a round chambered, and the trigger block will make me feel more comfortable. I was smart enough to try it out at my local range by drawing my concealed and loaded gun from behind my back, dropping the trigger block, and firing off a couple of rounds. The results were abyssmal. First few times I tried it, I couldn't get my finger to pop it out. Then, the next few times, I pushed the mag release by mistake (I am left-handed) and dropped my magazine. Needless to say, my Saf-T-Lok has been relegated to the drawer. Take heed, and learn to remove the trigger block by instinct if you choose to use one.