How often(or how many times) does everyone re-check the sex of thier hatchlings?

I bring this up because I went back and re-popped (and then also probed) our first clutch (50% het pieds). What I originally thought was a clutch of 3.4, is actually 5.2.

The two females I had decided to hold back are both males, and the two I had decided to sell are females. I checked the single female from clutch #2 and she popped and probed as a female, and our het albino clutch verified at 1.2. So I just must have been really nervous with that first clutch not getting the males to pop all the way.

Anyone else ever have surprises when re-checking?

Neil