My Opinion: The 3 year thing is advice that works safely for everyone. I have personally talked in great detail with very large breeders who do not follow this advice. They get them up to size and breed them. I highly doubt there has ever been any real data collected on breeding at year 2 causing small clutches for life. Plus bigger breeders don't want everyone else breeding at year two because the competition will affect their bottom line. My 4 year old 2300gram Lesser just laid 5 healthy eggs and 1 slug. My 2.5 year old 1800 gram Pied is going to lay in a few weeks. On a side note this is the very reason why I buy or will hold back a female a year, so I always have something new coming up to look forward too. I also find that right now you can get early 2014 females at great prices and skip a whole year of waiting. I just picked up my 2014 Super Pastel Axanthic and my Calico Pastel Leopard females at 400grams each. I will breed them the fall of 2016. I would just wait till fall and see where she is at size wise, but waiting is clearly the "safest" advice to give.