Well, I took your advice and did eggtopsies on the last two. They were indeed dead
#1 might had pipped into a vein (there was some blood, but not tons so I'm not sure) he was properly positioned and seemed properly moist. pip was a tad bit low so that could have been it too.
#2 upside down, internally pipped into fluid end.
Both had yolk properly absorbed and looked good. So there ends my first hatch....
12 Set
6 hatched normally
2 hatched w/ assistance
1 early quitter
1 late quitter (we don't know why)
1 pipped a vein
1 pipped upside down into fluid end
Thanks for everyone's support! If you even have anymore ideas on my late quitter feel free to post.