I had a nice 7 egg clutch from a mystic to a normal this year and went 0 for 7 on it...so it's totally possible to strike out still on that many eggs. Crazy odds happen sometimes, that's just how it goes...how far out are the odds of hitting that 400 million dollar lottery right now, but someone is going to do it eventually. I don't know what the number would be for me on proving out a possible het animal, but it would probably be breeding it to a visual until my total number of babies passed 15 and done with a minimum of two clutches/litters.
I've seen 21 eggs from an albino to a pin het albino and not hit on a single albino pin.
I've seen a bumble bee lay 5 eggs and hatch out 5 pastels and not a single one caught the spider gene.
I've seen three eggs from a small pin het hypo bred to a hypo pastel, all three hatched out as hypo pins (one also caught the pastel gene).
Anyone remember how many eggs were there from orange dream x orange dream breedings before the first super was hit on?...I don't remember, but I'm thinking it was a surprisingly high number.
Odds can be crazy sometimes, sometimes they work great for you, other times you've just gotta laugh about how impressively bad they can get to keep yourself from crying.