After watching the instructional video a few times, I went through the moulding process. It went very quickly. You do have to pay attention to be sure your entire ear opening is filled with the molded material. With these in my ears using the foam plugs and the percussion filters in place, I could not hear the little beeps from my microwave as I entered time to warm up a cup of coffee before driving to the range. You definitely should test the goodness of fit (and sound protection) before exposing yourself to a gunshot. One good way to start is how your car engine sounds when you start it up (assuming you have an internal combustion engine). You can hear it, but it should be quite muffled. If you can hear it normally in either ear, you need to re-mold that ear piece.I took these to an outdoor range. Firing a 9mm pistol, I could hear the shots but just enough to know the gun fired. Then I fired my AR-15 using .223 rounds. Very mild percussion in my ears. I have been using a pair of Howard Leight electronic ear muffs - they're about the best protection you can get. 33db reduction and very rapid response to loud percussive sound. My experience wearing the Decibullz - Custom Molded Percussive Filters with the foam inserts was at least as good if not better than the electronic ear muffs. Incredible. Since the percussion filters are mechanical, there is NO delay time in supressing loud sounds. Maybe that's why they seem even better. The sound level also seems noticeably lower that what I was used to with the electronic ear muffs.Bottom line is, if you mold them correctly, these things WORK!
Rating:
[5 of 5 Stars!]