Here is a bump, I found this thread very helpful, I bought 10 pounds of 1/8" designer gray from
http://armorcladepoxy.com/ArmorcladColors.html my Legacy Industrial light gray floor.
I felt like I had a little too much flake for my 22'x22' shoebox but used it anyway. I think I could have gotten away with 5 pounds and been very happy.
The best advice I can give is to test tossing onto a sheet of plastic the day before.
I rented a chop gun and decided to toss by hand after testing on the plastic. The $24 was worth it so I will never second guess my flake technique or as my wife calls it, sprinkles. One last item to remember, plan each foot step with the spikes, especially over areas that have had the 821 epoxy crack filler applied. I found these areas very slick.
Tomorrow I will clean off the excess flake and clear coat.