hi all,
only got a few months sailing on my nacra 5.2 before winter came but made some changes to the jib lead position.
the previous owner had the jib leads running to separate blocks and cleats on the hulls
this was good for reaching and downwind but terrible for upwind as the jib would luff long before the main as it couldn't be pulled in to the center of the boat

in our small lake i find the upwind sailing angles important so i got some combined blocks, mounted them on the factory cross tramp line and brought the jib leads into them

boat now goes upwind better but jib useless downwind
downwind isn't so important to me so fine

but over the winter i've been reading Rick and Mary's excellent, "catamaran racing for the 90's"

in it, pg87-88, Rick says that the jib leads should be tensioned from a point either half the jib clew angle or at 90 degrees from the luff through the clew

hard to visualize that so i've attached a pic.

problem is that half the clew angle means at the rear beam and at 90 from the forestay/luff means BEHIND the beam

i know i'll have to make some compromises but having it as far back as the rear beam isn't practical as i'll get all tangled up in the sheet

so any ideas on where best to place the blocks?

currently i'm thinking to slide them down the cable to as close to the rear beam as possible and pay special attention to not pulling the jib sheet in as far as i normally would as most of the sheet will be tensioning the leech and so choking off the slot...