Quote Originally Posted by ConcinnusMan View Post
And then there's the other 5 or so that are actually male and wouldn't pop.

Look at them carefully and trust your eyes. Popping is deceiving. It can confirm suspicions that a snake is male, but it can't rule out that it's actually a male that won't pop. I would separate the one's that popped from the one's that didn't, and call that group male, but I wouldn't take that as evidence to confirm that the others are all female.
Popping is much more trustworthy than you think. If you can I have YET to have sent out a mis sexed baby snake to anyone. Popping is not deceiving. It's very accurate. I maybe miss one in 50 babies the first try, and get it right the next time.