Can someone help? I have a Neil Pryde 2007 RS Slalom Sail, and a Neil Pryde UXT48 extension. I need a mast. The Luff for this sail is 485cm. I'm planning on getting either an NP Matrix X65 mast or maybe an NP X35 mast. I guess it would be a 460. However, my question is, what is a 460 SDM and what is an RDM?
Just getting back into it after over 10 years and slowly putting bits together.
Cheers 
Standard Diameter Mast - What you'd be use too.
Reduced Diameter Mast
Definately use the diameter suggested by the manufacturer of the sail. 
Cheers thanks for that. The guy I bought it from said something about getting a skinny mast. I can't seem to find any information about mast diameter for that sail. The following link doesn't mention it, but does suggest a NP X6 460 mast. But is that SDM or RDM?
www.kitforsale.com/news-104.html
It can't be too skinny or it won't fit on my extension?
That sail is designed for a standard diameter mast (SDM).
I have a X6 460cm mast. Its a 2008 model and is an SDM.
You either stick with rdm or sdm system or you end up with a lot of stuff after a couple of years.
