Heather did a piece on popping hatchlings vs. older snakes last month:
http://heathersherpsblog.blogspot.co...l-pythons.html
For me, doing it wrong results in a lot of false negatives---snakes incorrectly sexed as female. I wound up taking my hatchlings first to my local reptile store, where they charge $5 per snake for sexing. They came up with 3 males and 2 females by probing.
Then I took them to the local herp vet, who probed them again, and came up with 3.2 for the exact same snakes. He went on to pop all the males to show me their little baby hemipenes---OBVIOUSLY boys. But I still can't pop them correctly at home! And I'm afraid I'll hurt the little guys, so I've given it up for now.
But I have no problem popping my juvenile (2010 and earlier) boys. I guess they're just all exhibitionists?
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