Yesterday I shoot my truck bed with eastwards show clear, it came out ok however I had a difficult time with dry spray. I started out with a 1.4 tip 29 lb inlet pressure (sata 2000 hvlp) 6 in fan spray ,and got corse spray. That was fine for my first coat as I prefer a fast dimply first coat to prevent runs. To get a smooth second coat took some trial and error ,wound up with a 1.3 tip at 25 lbs 5 inch fan and very slow passes, not what I like or usually do. Got one run and the finish need wet sanded. I used fast actavator and temp was a bit high at 73.What went wrong, any sugestions.