I normally wear the high NRR foam plugs and often double-up with non-electronic earmuffs. I shoot alone in a remote area so I'm not trying to have any conversations. Now I'm looking to start taking classes and I need to hear the instructors. Can anyone recommend electronic earmuffs or plugs/buds that they've found to be better than others? For now, I'm looking at the Howard Leight Impact Sport. Is this the right choice?