Doh! my mistake, not mm .. cm! The 150-200cm is the range of sail widths it will hold. Some sails have the size of boom required written near the base. The idea of the 0,10,20 .. these are so you can re-configure the boom at the width next time.
When I was starting, everytime I rigged the sail I, had no idea, so rigged it completely different to the last time I rigged it - different downhaul, outhaul, boom .. no wonder I had trouble!
Once you get it rigged right, you should be able to easily rig it the same everytime (i.e. take note of the boom setting) .. and then you can make minor adjustments with your outhaul for more or less wind...
Enjoy .. Laurie!
(haha..thanks for
your patience!)
in the straps and in the harness(harness is still being worked out) poping little airs, water starts and now im trying the carving gybe which needs more attention but coming along nicely but im out of action with a sprained ankle from one of the attemps of a gybe
anyway enough of that i was trying to figure out the numbers and letters on my gear...
for example i wanted to know what does the stuff mean on the mast? mine says 460 IMCS 25 
thanks
