I know I hear people constantly stating to double up. I can understand that if you were using low quality muffs, but I really like the ear plugs that you roll up and let expand into the ear canal. For me these work extremely well. No discomfort at all on the range. The gun shots are so quiet with these, I don't feel like adding muffs to it would matter. I also don't go to the range on a frequent basis, probably 6 times in an entire year. I do have hearing tests on an annual basis and I have perfect hearing so far according to the doctor. I also do not work in a noisy environment, so my exposure to loud sounds is minimal. I guess I will carry on with what is working.