I selected TB III over TB II because TB III has longer open time, which I need for alignment of the longer boards. Besides, TB III is marginally stronger in less than perfect joints. Hope my joints won’t need that extra strength. Looks like, in general, visible glue lines in edge joining have to be avoided for reasons other than aesthetics. An exposed glue line in a gap between boards may swell and rise after contact with finish, or solvent, or moisture. From my (almost non-existent though) experience, gapless, hardly visible glue lines do not get raised. I have had a glue line with a visible gap raised and palpable after finishing with Salad Bowl Finish, so re-sanding with 220 grit was necessary. Not with tight glue lines. Is this because the layer of exposed glue in a tight joint is too thin to absorb stuff it comes in contact with?
-- "If you're not counting the ripples when throwing pebbles in the water, you're wasting your time."