Most (if not all) of the custom earplugs I read about are intended to reduce noise levels while allowing you to still hear accurately. I'm not interested in that. I'm wondering what will block out sound, and hence distractions, most completely.
I've tried several brands of foam earplugs and have found some that I like well enough, but they can become uncomfortable if inserted imperfectly. It's tempting to try a custom.
But would a custom really perform better than these disposable ones, for my purpose?
(Incidentally, I realize this isn't the ideal forum for this thread, but there really doesn't seem to be an ideal one.)