It's good to be skeptical! Quite frankly no one would really believe or understand how I launch so quick. I have a unique technique, perhaps the only one in the world that does it. I just had a look for a launch video, https://www.youtube.com/watch?v=qb1IvNU5GNI
this for example shows a technique launching I basically never use. Most new foil kiters launch in the side of the window. I have no idea why. It can give you a sense of safety I guess, but it requires a lot of beach space,can be difficult to master and things can go pear shaped easy.
There is a number of techniques required to make foil kites less painful, easier , quicker. Someone should make a video
lol. God knows I have spent 50-100x the effort trying to explain it in person. A large percentage of which has just confirmed my nonbelief in educating people. People getting educated ,different, given the right material and format I think anyone can learn anything. Don't despair it's not your fault you cant get it right first time. There is no solid info out there on all the best techniques. A lot of what I know has come from trial and error. Looking back it is a bit much to expect others to work it out themselves as well.
You can get to the zipper by sanding a tip and reach under the leading edge or standing on the tip and pulling the LE till you get to the zip, then continue till you get the other tip and can fold the kite in half or you could fold it in half and then open the zip, either by sanding one tip and walking to pull the other tip or by standing on a tip and pulling the other in by the LE.
"Some" untangling of bridles. Follow hand along LE from the center collecting any bridles covering the LE in your hand till you reach the tip, where you can release them into the wild hopefully to survive
You may need to do this for both sides. There is other techniques , involving threading the wrapped or unwrapped bar though lines and bridles. Hard to learn but youll never need to disconnect lines. Youll use that new skill on LEIs (leading edge inflatable) aswell. There is situations where disconnecting a line can be useful, like flying the kite, but that's other realm. Fluff/tease bridle tangles never pull hard on them. The most horrifying messes can come apart in seconds. Follow lines into a tangle and work from there. Pulleys are a pain/source of trouble. Kami wonders why I think the ronstan orbits are stupid.
Launching the kite and trouble situations like relaunching, luffing, etc you always want to generally use a LOT of back line tension, grab those rear line leaders, thats why balls/ thick line/ knots are good or/and a bar with backstall. Launching downwind you want to keep that kite on the ground till its got some air in it, you don't want to let it fly completely up until the tips are open and theres lots of air in it. Youll work this out from kite model to model, they differ a bit, and with experience.
I never used the 5th line or bridle . It came straight off before the lines went on. lol. I have yet to test the FLS(front line safety), just a bit lazy. When I was in 25knots I was tempted, I had visions of things ripping apart though. This is Pansh afterall and it happens on Flysurfers sometimes. An 18m foil should not be used in 25knots, unless of coarse you run a kiteforum. Safety lines are not a huge concern to me. I usually keep good margins from things and releasing the whole kite is not a problem. I use a safety to protect other people and save me some hassle, well maybe a huge hassle. I'll make a note to test it next time and I'll let you know how good it is.