RESULT: so I bought these?

http://lllreptile.com/store/catalog/...sexing-probes/

And I love them. I don't think I would have had the courage to try probing myself if I hadn't watched the vet do it a million times.... but now that I know how, this is so much easier than popping.

(Plus I get to show the metal probe and the tube of personal lube to the little baby snakes, and say: "Hey guys! You'll never guess what's going to happen next!")