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

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?

Good onya, thanks.