sourced rope from yachting place same as windsurfing rope.
If replacing rope what size do you get i get it in 2m lengths. for out haul and downhaul
Also attach 4 metres of rope 2*2 metre lengths to back of boom (either side )as spare?
more rope has to be better than less rope right?
seen people running like 2 wraps before cleat on a 4 mec advantage.
these must be like 1 metre lenghts.
cant get enough rope?
What is your down haul rope out haul rope length?
how often do you replace your rope?as standard?
I find if im using large sail 7+ its difficult to get the downhaul
with shorter roper on same base.?
can we assume that rope is like a sling?
If we divide the downhaul load over 4 lines rather than 2
its less likley to break?
Holdon 
ill ring Ben Severne ?????He should be able to make the calculations............
ill ring Ben Severne ?????He should be able to make the calculations............
I find 2 metres is longer than I need for my 7.3 twin cam. 1.8 would do. I use 2 sheaves on the extension and 3 on the tack. If you want to use another pair of sheaves you will need longer. 2.2 m would do it for me but I'd rather use 5 good quality sheaves than 7 of those dodgy little ones on the 4 sheave tack hooks and 3 sheave extensions.
With good sheaves, a bit of silicone lube and some Formuline down haul rope its easy to get adequate downhaul with just 5 sheaves.
I got 1.5m of that AWESOME white rope. I can't believe that rope its absolutely joy. No fraying whatsoever yet.
1.5m is a pretty good for my wave/freestyle getup, though I hate having to endlessly coil the rope around my mast and putup with a little extra effort to rig a sail. Go 1.75-2m for slalom IMO.
Don't skimp on that white rope, its worth every penny.
As a general rule, I use 1.5m lengths for my downhaul and 1.0m lengths for my outhaul.
When any rope start to get "furry", it's time to replace it.
Hope this helps.
