Would like some pointers for the final fill coat. How does one smooth it. My job seems to be "lumpy". Day temps near 90, waiting until evening temps fall close to 80 before starting; Using System 3; Humidity ~ 30-40% Hovered around the boat with foam brush in hand until drag on the brush squealed like a scared cat. - Definately past my bedtime. 20 hours later the job looks like it will require scrapping and sanding over most of the surface. (Coho - in case you are interested.)

Thanks for the help. Dennis