Would that logic be more meaningful as cat rigged, as opposed to sloop (no slot to induce wind sliding across the lee side of the main)?
I can't really tell, but remember that account at the end of the full explanation ? The one were I overtook 4 I-20's and 4 F18's by sailing through their lee to win after I had been over 200 mtr behind ? Were I discovered this light wind trim ?
Well, I was sailing doublehanded sloop rigged with 145 kg on board (= 320 lbs).
Who says F16's can't carry weight in the really light stuff and beat the F18's/I-20's on elapsed time ?
So I guess the advice is no less valuable when sloop rigged as when cat-rigged. Just don't pull on the jib sheet too hard and close off the slot. If you want a flat jib then just pull on its luff tension control or alter you rig tension. I just slacked the jib sheet a little bit so its leech had the same twist as the mainsail to the back of it.
Anything to keep the mainsail breathen properly
Wouter