Where do you guys get your custom fitted ear plugs made? I'd like to get a set I could use with the helmet, and under a set of ear muffs when I shoot competition. I'm tired of the foam plugs. Do these fitted ear plugs come with any type of db rating? The db rating is probably not terribly critical for racing, but it is for shooting.

Anybody still have the kind that hook up to your radio, or do you just pipe your radio into the helmet itself/

Thanks
Wayne