Now I can see how that knot works with an RF system and a higher clew......what if you have hanked on no RF with a deck sweeper 155 or some such jib/genoa. One usually wants as short a knot as possible, so you can get the carr as close to the clew in light winds for sail shape. Farther back in heavy winds would not be an issue as you will usually want the carr back a bit.
She drives me boat,
I drives me dinghy!