Thanks, but sorry, no, havent had it in the water, and most likely rarely will, as it hangs better than even racefoilkites it seems (but the Cloud is even lighter, true), eventhough not the same power as these of course.
On land I always reverse launch in marginal wind, or walk it on its back and pull the lower rearline, also the Voyager this day, and with other kites a bit more wind reverse launch too on the water as no kite can launch from the side when hydrofoiling (unless when windy) anyways.
Problem is small waves can suck the LE down so impossible quite often, and here the diagonal trick should work better as you might be able to pull the kite up on the frontlines when twerked around before it semisinks
But my experience is often that it dont work even when doing so the few times I had the chance, meaning I drift ashore instead and launch kite on land or beach standing in low water instead.
Cant help you here, too little experience and using these kites in too low wind for relaunch anyways, sorry...