Thought I'd follow up here, sorry it's nearly 2 months later. I decided that my table saw jointer jig was just fine. I ended up with a cupped tabletop, though, which led me down another path. I got a hand plane, went to town on the table top, but the grain on the 2 pieces of joined wood was not symmetrical, and I ended up with quite a bit of tearout. I finally decided that I needed a planer, and bought a Grizzly G0505. With that, I planed 2 more sheets of pine and jointed them with my table saw, and the table top came out looking pretty good.
I'm moving on now, but hand planing is wizardry that I only began to skim the surface of (no pun intended). I ended up with a shop full of shavings and never got rid of the unevenness of the surface. If you looked at the amount of shavings I had created, you'd think I had planed down a large piece of pine completely, just to make shavings.