I'm doing Spider x Spider

[Eric Alan]

My only thing is what if you do produce a super and it's mixed in with other genes how are you going to tell? That's why I want to do just spider to spider that way whatever spiders do come out I won't have to sit and guess just keep em and breed them back to normals to see if I'd get all spiders

You tell by doing the exact same thing with the Spider combos.