Mach 9 6.5m with RDM ?

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Jasonwave
Jasonwave
174 posts
174 posts
28 Oct 2026 9:44pm
Hello.
I am about to buy a Mach 9 6.5m. Can I get away with using my RDM 430 full carbon mast despite the recommendation of using SDM ? will a few cam spacers get it performing well enough and save me alot of money on an SDM mast just for that sail ?
Or will I just be shooting myself in the foot by being cheap and be losing too much of the sails performance ?
I am 80kg, to be used on Isonic 67, gusty winds, flattish water, weekend worrior just chasing the other lads.
Cheers.
Dezza
Dezza
NSW
963 posts
NSW, 963 posts
29 Oct 2026 12:36pm
I used the Severne blue rdm 430 on the mach 8 6.5m, also on 7.0m of earlier models, rigged ok, some tweaks on outhaul setting, it worked fine for me, same board as you have, I much preferred the handling of rdm over sdm .
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