Adding on to this thread since it seems like the longest.
I just did my second floor yesterday, after learning some lessons the first time in '06
http://www.garagejournal.com/forum/showpost.php?p=71413&postcount=19
This time the floor came out much better, and I think there several reasons:
1) I mixed the A & B in much bigger batches. The reality is you can work with this stuff pretty quickly, and when you blend an entire kit at once, it mixes very well and gives you more to work with once you dump it on the surface.
2) When you do get bubbles, which I did on the one small batch I mixed, the leaf blower trick (I used the shopVac ) works pretty well. Not perfect but better than nothing. Best to avoid bubbles with big batches.
3) You've gotta have several large plastic spatulas handy. Otherwise too much waste.
PS: for those looking to make a decision on flooring, my first application is now 9 years old, holding up incredibly well. Zero lifting, hasn't worn through anywhere. The only damage is chips when something heavy and sharp falls.