In my opinion, temperature sexing for the most part, is a bunch of crap. There is always variation within the temperature of the incubator. Every time the door is opened, the temperature is affected. I am so sick of these breeders flapping their gums that they are this sex or that sex because they say so. The only way to tell is when they are big enough to visibly see the sex or scope to verify type of gonads present. Any time one of my tortoises are up for sale, if sex is unknown it is UNKNOWN. Not temperature sexed female or male. How do you even know that you can trust the breeder to tell you the truth as to how they were incubated. You want the true sex, then get proof they were sexed or do not believe what you were told. Not every species of turtle or tortoise can be sex steered via temperature.