Yeah I've hatched like 1,100 eggs and the 500th definitely wasn't perfect for me. Very cool your friends both got 100 IV mons on their 500th. Anything good? Up 0 Down
That is not true, confirmed, at least for me it was not, in fact from more than 600 eggs the only 100%IV I got was a poliwag at around 570-580 egg. Up 0 Down
We know that pokemon and moveset are set when we receive an egg. I'd assume that IVs are set then too. Up 0 Down