OK. Thanks, I've been messing around with it. I used the preval to spray the PVA and it worked relatively well, so I won't put wax in the gelcoat anymore. Still trying to figure out exactly how much to thin the gelcoat, but I'll figure it out.

One thing I noticed, the preval really doesn't seem to have a lot of pressure when spraying. However when I was cleaning it out afterward, I flipped it over (like you would do when cleaning a can of spray paint) and the thing blasted out a nice powerful plume. Would be nice if it had that kind of power when spraying upright.

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