The Ketos 1200 fits the same fuselage yes, and you dont have to stand further forward than with the smaller wings, a big plus.
I use both 91 and 100 cm masts regularly with the 1200, quite often the 91 cm, as I use the 1200 more often in lighter winds where I dont need the 100 cm as much as when o/ut in high winds and more choppy bigger waves, where I use an 800 cm2 on a 100 cm mast for these windier conditions usually.
Sometimes when windier it is great just to rig down instead to a 3-4 m2 LEI kite, and use the big Surf wing
I like to use a really small flat stab around 200 cm2 only, to make it really lively, but otherwise around 250 cm2 which gives a sweet fluid smooth tracking feel when you turn.
The small stab, 1200 cm2 surf wing, and the 118 cm pocketboard at my home break:
The Moses Onda 633 and the Ketos 1200 are the early ones, but a lot of others are around now.
Maybe we should list them, with their area and span?