I think you are asking more than current iSUP technology can accomidate A Narrow Long iSUP using a WS rig would twist to much for any kind of ws performance I'm told

Closest width is 31"that will WS

JimK
Extreme Windsurfing

Capo... That's sounds intriguing.  I'm skeptical though that some sort of glued-on attachment would be strong enough. Then there's figuring out optimal position. I was hoping to find a production board that had this figured out. Starboard makes so many niche models and comes from a windsurfing heritage, I'd think an Astro Racer with windsurfability might be something they would offer.

The main problem I see is the fin, iSUPs have short plastic fins, too short to go upwind.

Beaner,

Are you looking for an iSUP that performs as well as your old (but hard construction) Superlight

That's a tall order even in todays technology

If you are looking at hardboards that paddle well and windsurf even better I gotta say the Fanatic Ray is SUPER FUN

let me know

JimK
Extreme Windsurfing