Thanks for the comments!
If you end up doing a hot launch with a 5th line you can always pull in some of the 5th and hold it to take the power out of the kite. Just grab the leash below your bar and don't wrap the line around your fingers! The kite will flatten out into a weird shape and kind of float up. The trick is not to let the 5th out too fast and definitely don't just let go of it all at once when the kite is in the power zone or you will be yanked very hard. This tip is very handy if you are launching trailing edge down straight downwind (hot). Just pull and hold the 5th and the kite will float up.
Thanks a lot, Pintofpale, will definately use that. Can’t wait to try on +25 knot seebreeze.
Also helps to paddle away in strong currents to keep some line tension, no mater what type of kite... slack lines will cause it to have a cow!
I think that was the main point for me. It was not the best of ideas to start brainstorming in the middle of slack lines. Actually, I was quite certain that kite went broke cause a slam was pretty big and kite did not relaunch as it normally would have. Eventually I was really happy, kite intact, bird’s nests undone and a good lesson learned.