Standard parts on a medium

Might be kind of late since I bought my egg in early spring, but I was wondering if anyone knew the standard spring assist hardware on the medium. I know a few of the other eggs I have seen have a double spring in the back. Just want to make sure the standard for the medium was only one. I've noticed a few missing acorn nuts (no big deal) but want to make sure the rest of the stuff is here. It's definitely been cooking great, just would like to know. Thanks!