Now for the important update...I shot two more coats without the filter in the gun. Made all the difference in the world.
I pretty much only have time to shoot 1/2 a quart a time and then it's used up. I blew some lacquer thinner through the gun, mixed up another 1/2 quart, then shot that for the second coat. Two coats and I still hadn't filled some of my 80 grit scratches...

You have to go SLOW when spraying this stuff on, but still. I went over and over those scratches in some spots.
Anyone see any reason why you can't just shoot the low guide coat spots once it's all blocked and then block again?