Looking to step up to some electronic hearing protection. I am looking for a set that offers a high NRR level as I know many of the sets out there are a bit on the low side. I will be using these in indoor ranges and in the open. I typically wear a set of surefire earplugs under my current ear protection and will likely do so. Much of my long range shooting is done suppressed with just the surefire earplugs in as my current pair is too fat to comfortably get behind a rifle without breaking the seal so a slim profile would probably be advisable as well. What have you guys had good experience with?