Agree, Glowing starts two to three weeks before ovulation. They ovulate and the snake goes back to its darker colors. The snake will shed in most cases two weeks after ovulation.
I have a couple of females that have already ovulated, a couple about to ovulate any day, and I have females just getting folicles and some with no folicles. The weather has been very different here in Tx this year anad my animals are going later then usual. The same is happening with friends of mine.