Originally Posted by skrap1r0n
....My question is, how does one go about adjusting the Genoa cars, or rather what does one look for when it is time to move them and how does one know they are in their proper slots?
You need a set of telltales on the jib luff. To set the genoa car, when sailing closehauled, slow luff up, if the upper telltale stalls first (lifts up/drops/whatever) move the car forward a bit. If the lower telltale stalls first, move the car back.
The car is in the right position when all luff telltales break at the same time.
for more info.