...but definitely NOT a mite. I saw good growth under the top leaf spreads - I thought about isolating that plant, but thought it might be too stressful for it (if it is indeed under attack). Since I'm fairly sure it's not mites, I just cut off the two leaves that were basically drying/warping (it looked like it would be strenuous for it to try to pump health into 'em) and will continue to watch and hope for the best.
Oh - the plants are a really gorgeous healthy green, but the fiberglass on my greenhouse is green, so it makes everything look more yellow than it is.