Well, I'm tackling the underside of the primary hull in earnest now. There are about a dozen separate pieces down there, all of which need to be frozen, optimized and seamlessly stitched together before I can proceed with detailing such things as the gridlines. I've worked on it for 5 or 6 hours today and I'd say I'm somewhere between 1/3 and 1/2 of the way there. Very meticulous, very tedious work.
Should have some more WIPs posted by tomorrow night.