Those foils look entirely too new and shiny. They need some battle scars! My 633 is strictly for kite foiling. I'd never consider it for winging. The 790 is the smallest I use for wing foiling. I also have a Gong XL pro that I thought I would get rid of once I had the Moses quiver. Despite being heavy the Gong has proved to be an awesome all round easy to use foil. Just learned those harder heelside to toeside tacks and 360's on the Gong. So I'm hanging onto the Gong and slowly growing into the Moses foils. For example, the 790 has great top end and is very carvy, but if I lose a lot of speed during a transition, it stalls quickly. The XL pro gives up a little top end but gains so much in the low end, which is a big help for me doing new transitions. The 1100 is my go to light wind foil. I'm 78 kg.
FWIW I have the Moses 82cm surf mast and 71 cm kite mast. The 71cm is a wee bit flexy with the big front wings, but livable in flat water conditions. At some point I'd like to get the stiffer 72cm mast. Should also mention that the 633\450 Moses combo has such low end for kitefoiling, I've never been tempted to use the 790 with my kite, at least at my weight. At the moment the 790 is my orphan foil!