I have had about 4 kick outs so far this year. I lost one, one hatched, and the other two are incubating nicely. I would say most of the time they do fine, if they candled nicely. As for the half vein egg, that is about a 50/50 shot. 50% of the time they reabsorb the veins and die, and the other half the time, the veins start to "grow", and you will see a bunch more veins after about 10-14 days, and it will hatch fine. Just keep an eye on those 2 eggs, and give them a little extra TLC if they show signs of deterioration.

I like Adam's term for it "Egg Maintenance Plan". I think that says it best. When implemented, a good egg maintenance plan can help alot of eggs that need some extra care.