We’re also using the Interlux Schooner Gloss Varnish… We’ve been averaging 2 coats per quart. A coat includes exterior shell (1, 2, 3, and 4 panels and transom), galley, exterior doors, and exterior hatch. (The bottom has truck liner paint, from the CLC class.) Usually, there a skosh left – enough to hit parts of the galley insert.
It’s been very hot here in Maryland (usually 85+), so we’ve thinned it a bit more than most. Using the “cups”, we’ve been doing 8 parts varnish, 1 part Penetrol, 1 part mineral spirits. This lays *very* nicely with very few runs and with (what seems like) extended work time of the varnish.