25 years of shooting and 10 as an instructor. Always used foamies and muffs no matter what I was shooting. About 5 years ago I had a set of custom molded plugs made and discovered what comfortable ear plugs feel like. Foamies would irritate my ears after a few hours and they were a PIA to put in and get them to seat properly. My custom molded ones go in and seat perfectly everytime, easy to put in and easy to take out. I have one set with small filters and keeper strings that let in normal sounds like talking but not loud sounds like gunshots. I have another set without the filters and no strings to better seal my muffs. When shooting very loud guns (short barreled 308 etc) or on a crowded indoor range I use these to better lower the db getting to my ears.
Custom plugs are worth the expense. if you use foamies, you will never look back after a good set of molded plugs.
Double up, plugs and muffs. With all our modern medical science, your hearing is one of those things they cant fix once its gone. Electronic amplification devices help, but stop the damage before its gone too far.