Got up this morning and after breakfast got to spreading epoxy!!! There were a few slightly lighter spots where the bare concrete had sucked up the majority of the primer, but nothing horrible.
Mixed one gallon at a time. Really took a while to get it mixed well, went slow with a drill and the supplied mixer. Had a little trouble at first pouring ribons of epoxy out of the bucket, it was more like puddles, now I see how a squeegee would have helped. Overall it spread very easily, and I almost could have used one gallon to cover the the entire 425sq/ft. So I started leaving it a bit thicker. The spiked shoes work well, but be careful putting them on, they are damn sharp!! About 3/4 of the way through the first gallon I had my girlfriend start mixing the second gallon up. Painted the entire floor, then spread the flakes. The girlfriend wanted them a bit heavier than I did, so, what do you expect, we went heavier. We had plenty of flakes left, so we tried full coverage on the step to make it stand out a bit (I'm a bit clumsy, and know I'd trip on it)
Hopefully by later tonight it will cure enough to topcoat