I rode 633 with original Moses 749, Stingy’s 743 (wing closer to mast), Moses 710 and Stringy’s short fuselage ~550mm.
I can attest that fuselage length difference is barely noticeable when riding. Yet you can tell when carrying extra long and heavy stick of large surf fuselages.
Getting wing closer to mast is nice because it doesn't pry rear end of mast insert out as much.
I rode 633 with:
- original 483 which as stabilizers with winglets pointed down tends to get winglets destroyed on occasional rocks and shell.
- with 450 for a year back in 2019. I loved winglets pointed up but I had to shim 450 aiming it up to compensate for excessive downward angle it has. Without shim my stance moved way too far forward.
- with 420 race stabilizer. Some folks like 633/683s/679 with race stabilizers because of extra looseness/playfulness they get and because race stabilizers are thinner (less draggy) than 483/450. I’m not a big fan of small stabilizers paired with large wings for kitefoil (for winging it’s good)
- with RDB 310 cm² “surf” stabilizer which is about as large yet thinner than 483/450, has winglets pointed up and doesn’t need shimming. I use the 310 cm² for lightwind primarily, when it’s time for large wing.
I think 633 and 679 being de facto kitefoil wings deserve connection rather to kitefoil fuselage which is lighter, more compact and could pair another, smaller wings. But it might be too late to talk about it.