yea i have heard about bzzz, but I hear that their 7mm feels alot like 6mm and would not be good in upwind upwards of 10-15 knots, is this true? does anyone know how the 8mm feels?
I can't comment on the Maffoli, but I have sailed with the following the past 6 months
1/4" Marlow Marston (the late 70's and 80's "standard" for Laser mainsheets)
7mm Rooster
8mm Bzzz
The thin Marlow is great in very light air (0-7) which I unfortunately happen to have a lot of during summer months. It will allow the boom to run out easier when rounding the top mark, but most importantly, when sailing downwind, the feedback from holding the sheet when a puff hits is much higher then with the other two lines. This is really important to minimize distance sailed to the bottom mark. In breeze over 12knots, it's a pain (literally) to hold.