Kyle, leave the third buckle and strap. If it is not getting in your way, it is not doing any harm.

I am in the process of getting a hand-tooled strap as a replacement for the third strap on my RAF tank. I am also looking for a suitable silver buckle. Although the other two might be covered up the third will always be on display. So why not make it as good looking as possible?

Regards

Chas