My home inspection of Speedmaster heads

I guess I've always done one head A,B,C, etc and on head 1,2,3 etc. I mark one end of the head 1 and the other end 8. Then as I inspect I refer to one head as the "A" head and the other as the "1" head. Good thing I work by myself... lol
As long as you know what you're doing. LOL