I went to my ear doctor yesterday and discussed hearing protection for me as a shooter. I told him that I normally wear the expandable foam plugs and muffs. I asked him if he thought some of those custom made plugs would be better. His response was that what I was doing, foam plugs and muffs, were the best option. The high priced custom made plugs were not high in his esteem. They are molded to your ears but if not placed precisely as as they were molded, leave sound penetrating gaps, but the foam, which he says provide as good, if not better, protection, expands to fit perfectly. Another problem with molded plugs is that as time passes the shape of the ear changes making the plugs ineffective. Food for thought.