I winged and kited on the Moses 790 for a season, amidst other foils to test. Sadly I'd say, or maybe not sadly, foils have progressed impressively. And, as someone has pointed out in this thread, kite foiling is different than wing foiling in that whereas the kite provides mega power 98% of the time, the wing provides 0% of the power 20% of the time. That being said, being one of the addicts who kites 50% of the time and wings 50% of the time, and rides the same board/foil often, I can agree wholeheartedly with other posters who make this conclusion: you need mega power when winging with foils designed for kiting - with one exception - Mike's Lab. His foil designs are just off the richter, and his top riders are now interchanging his super high aspect foils for either sport. His foils have such incredible lift and low stall speed that they work for either - they can handle high speeds for kiting, and slow speeds for winging. Guys are now having two boards built - one for winging and one for kiting - but using the same foil to slap on to the board for the day's conditions.
But I digress. Back to the 790 and 633. Again, the 633 was my favorite all time foil, for kiting (but I rode it on the 380 stab). The 790 was initially built for windfoiling I think. It wasn't good for kiting in my opinion, and wasn't that great for winging. It was "satisfactory". Limited range, limited carvability, limited pumping. Sure, it works, but just mediocre overall.
What is sad, because it kills my wallet, is that foil progression is such that you just really cannot afford not to spend the money since you are spending the time to ride the best stuff out there. It really makes a difference.
I love to experiment and I ride everything, and in the oddest combos, but the high end foils make a world of difference.