I'm 220 and have sailed a 7.8 Ezzy 2 cam Infinity on a 490 RDM for a
Its alright for what I use it for - bombproof, durable and pretty good.
Cams work fine after initial adjustment.
Not as snappy and crip as a regular mast, but good enough. Feels more
like a 75% carbon standard mast than a 100% carbon standard mast.
460 and below, and I love the RDM's in the wave sails.
For 9.0, I think I would prefer a high modulus or reflex SDM (compared
to my Ezzy Powerex RDM mast).
But if you are not sailing the 9.0 OP'd and gusty (and/or you are not
that heavy), it should be fine for recreational early planing fun.
YMMV, since you are looking at Gulftech.
Their RDM's may be more responsive - I do not know.
Responsiveness and reflex is the only issue for me. In all other
regards, SDM are superior. One thing that helps is to use RDM on a
sail that was designed for RDM.
> Hi group,
> The summer doldrums are creeping up on us here in NC, and I'm
> reluctantly turning my attention to the big gear. Planning to upgrade
> both my 490 mast and 9.0 sail. I'm intrigued by the prospect of using
> a large rdm, such as the Gultech 100% carbon 490. It will be partnered
> with a Windwing Hammer in 2-cam mode to cope with the gusts on Lake
> Jordan. (As an aside, I'm told that some photos from Jordan are in
> the latest NewJ -- Raleigh is the latest windsurfing destination...not!
> I realize there have been concerns in the past about the stiffness/bend
> characteristics of big rdm's, and wonder if these concerns have been
> confirmed or dismissed by actual experience. Can any rec.dotters out
> there provide some testimonials regarding their experiences with large
> rdm's, especially (but not exclusively) the Gulftech?
> Charles L.