Try palpating your snake for hemipenes. If you put a piece of paper towel around your fingers, or pantyhose work best if you have them, it will be easier. It will reduce friction between your fingers and the snakes scales
Wow seems pretty easy. Going to have to go try this now. How accurate is this? I want to get the hang of popping and palpating for when I do eventually breed. Would be mortifying to sell the wrong gender. Thank you for posting!