Thanks again for the replies! This is a swamp ash body & I'm going with the Minwax Polycrylic for grain filler.
I sanded the body down with both a 3x5 sanding block & an eraser wrapeed in sandpaper until my threshold of monotony had been reached (& its pretty high).
So far I've put on 4-5 coats of Zinsser Seal Coat & knocked it down a bit after each application (& >6hr dry/cure time) and let it sit for 48 hrs before my first application of Polycrylic, which I'll sand down & recoat again tonight.
I keep asking why I thought this would be less hassle than laquer... Oh yeah, I didnt want to wait 30 days for curing
& then theres the durability thing......