How is it for sanding, does it sand nice or plug up the paper? It says to reduce this primer or you can roll it at a 4:1 mixture, what tip size are you using to spray it bob?
It will spray out of a 1.4 tip just fine at 4:1:1, I've also mixed it 4:1:2 when I didn't need much build and it worked fine. It kicks fast so I like using a slow reducer to make sure I can apply it smooth. Sands like butter once it's cured, wet or dry, wet for fine grits like 600.