Exactly,use their hardner and reducer to their specs.Most of the time you are allowed to slightly overreduce the clear but you have to ask to find out,but it really does very minimal to help.Your gun setup is the most critical,then the feel will come.Think of atomization as trying to get a smooth finish with softballs compared to golfballs,the golfballs will cover faster and lay flatter after flowing.If you're throwing softballs now higher pressure will help a little but a smaller tip is in order.Alot of people tend to paint "too fast" on the reducer too,HOK isn't supposed to like it at all but with PPG I run a temp range slower-like it's 80 degrees and I use the 95 degree or use about 1/3 of the 85degree reducer and the rest 95.Reading your tackrag is a good indication of proper reducer,if your base is leaving anything more than a hint of color you're too fast,and carry it over into the way you reduce your clear.That test is tacking the surface only,not masking paper included,and a blend panel on a high metallic or pearl color is the best test.