Thank heaps fellas, all of you:)
Go - Sorry for kinda hijacking the thread but your positive comments awoke my thinking towards loft sails.
Ok Im typing as I am thinking, here is what have in current quiver.
Pryde Power XT mast base suits all my current masts.
4.2 Zone (3 or 4 seasons old) I have incase it blows it's t1ts off - not used yet so keeping it
4.7 Zone is 3 seasons old in top nick, it's a keeper.
5.5 Search 2 seasons old, a keeper.
6.0 Ezzy a great sail but 5 or more seasons old, it will be sold off or used as a trade for somthing.
6.9 Expression 3 seasons old in top nick, keeper mainly for river conditions.
400 / 19 NP Wavepro looks standard diameter
430 / 21 XC65 has a standard looking base then tappers down to like a skinny, sorry don't know what sdm,rdm and ndm mean I guess mast diameter. Here is one in a pic.
www.trademe.co.nz/sports/windsurfing/auction-164287453.htm460 Is a cheap no name type with zero markings but is a standard diameter, I would upgrade this to as DavMen kinda suggests an SDM.
460 sdm 80% 25 2.10
I have 5 sails in my quiver 2 are near new and 1 is doing fine so 2 are up for a change, I am thinking of getting the Loft 5.9 and the 6.6
5.9446188430/21 rdm430, 4606* + SensiTip04.101,3
6.6470203460/25 rdm430, 4606* + SensiTip04.361,3
How does that sound guys, looks as if with the NP 430 sdm can be used with the Loft 5.9 and then I upgrade my old 460 to a new Loft 460 80% Sdm to suite the Loft 6.6.
Anyone disagree in a big way or will this do? Your thoughts appreciated.
Cheers GT