Hi all. never posted in this forum as I am more of a blood guy, but I have had a red tail for about 10 years and have never known the sex of it. Can you probe adults safely or is heir another way of sexing them. He/she is about 7 ft long and I have never probed snakes before, but need to learn. I have probes and a video on how to probe balls, but wasn't sure if it was basically the same for boas. Any help??

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1.1 Borneo short tail
1.1 Sumatran short tail
1.1 Marble borneo
1.1 Sarawaks
0.1 Sumatran Blood
1.0 ambanja panther
1.0 leopard gecko
0.3 ball pythons
0.0.1 blue tounge skink
0.0.1 red tail boa
0.0.1 jungle X coastal carpet python