Well the 1800g female surprised me last season. I saw the glow, ovulation and the pre-lay shed. Of course, we were moving around this time and on top of that we had a huge snow storm. It knocked out power at our apartment and we had to move the snakes to the new place before we could move their enclosures. 30 days after her pre-lay shed, I didn't see any eggs and figured she wasn't going to lay. 30 days after that (60 days after her pre-lay shed!) she gave me 6 eggs. Of course the clutch was a wreck and only one baby hatched. He died a few months later.
So who knows, but I didn't see a glow (not a full on glow. She glowed a little but not much) or an ovulation.