Any one know of the top of the head the weight differences in a 30% carbon 460 and a 70% carbon 460?
Cheers advanced. 
Y i think there might be a bit more to it than just 1 extra kilo displacing your board into the water. As Guy Cribb says in this article:
"The difference between the world’s lightest masts at just under 1kg, and the heaviest –
your old epoxy or aluminium one at over 3kgs – might only be a couple of kilos and therefore seem irrelevant, BUT when
that becomes ‘swing’ weight on a 5m long mast (levering you over and swinging around rig flips), those 2kilos feel like tonnes. Even half a kilo makes a massive difference, especially to beginners uphauling, waterstarters getting the rig out of the water, carve gybers flipping and wave sailors jumping"
full article is here:
www.guycribb.com/userfiles/documents/Mast%20Debating.pdf
and the full set of articles is here :
www.guycribb.com/windsurfing_technique_holiday_DVD_0076v01.htm
very useful these, what i learnt most intermediate stuff from..
hmmm... good points. I am going with the 75% carbon 460 then! Hunj % is just outside my budget.....
