I believe it was Walnut that has some numbers on early eggs, but my current set was started 2 Saturday mornings ago, and that afternoon I got another egg and I added it that day. I just candled them all and that one actually looks the best overall. The blood vessels extend lower into the pointy end than the others. Dont know why, and it may have nothing to do with anything, but that's the way it is.
I'm also adjusting humidity down a few points, the air cells look a tad small for day 14 (well night 13)