just make sure you use this spreader bar that has two slider ropes, the ION, two ropes independent of each other, both 5mm dyneema, and replace every year, the Ion slider bar fits most 4 strap harnesses,
One rescue method that works well-
In the water foil kite down-no hope of relaunch, and before lots of water has entered.
if the conditions are such that you will need the board, get hold of it quickly and secure it on a leash to the back of the board.
this has to be done in a blink of an eye, so make a plan and try it out, it may work on the beach but up to you neck in water is another world.
not securing the board and then failing to relaunch the kite may well mean the board will be too far away and impossible to get to without firing off the kite bar and swimming off to it,
I have done this and it worked as I was able to lie on the board and paddle back and start my pack down, but its very risky, and will make you think very strongly about how to do it better next time (of course a buddy looking out for you will hopefully retrieve a runaway board, but has he seen you? and will he know how to do it?
back to the job of pack down-
Rolling in all the line and the bridals around the bar is a must do,right up to the kite, and secure the line to the bar with the bar end bungies or a overhand knot of the bridals over the bar ends,
I have found it best to leave the vents shut as long as possible, this provides a number of advantages,
firstly a floating big balloon is easier to spot,
and the floating mass helps it to act like a big GO JOE, a mini sail for the wind to help the wind blow you in the right direction, keeping this balloon good and tight by ocasional winding the bar up tighter, this prevents water getting in, opening a vent will quickly make the kite flood and impossible to keep on top of the board.
Always have a leash eye loop on the rear of the board, ideally secured under the rear foot strap or use a footstrap screw hole, not the front, if it's on the front, the board will keep bumping on to you,and get in the way all the time, and also if you do leash on to the front end and before the kite bridals have been secured inside the rolled up kite then the board and foil will get tangled up in the loose lines, and that's a right knightmare.
Which sort of leash management system you use is a can of worms, and I have tried the lot, and only one works well for me, 100% of the time. but the main consideration is your safety, and the board is a flotation aid and must be kept with you for the swim in if at all possible.
I do a risk assessment each and every time I hit the water, tidal flow, strength of tide, direction of flow around our sandbanks, wind strength and direction, are buddies on hand, suitable attire for the temps on the day, nasty looking dark cloud formations, the list is endless.
My o'shit list includes carrying my mini flares with me at all times and my smart phone in its aquasure pouch, it's switched on, and can be used in its pouch, volume is on loud of course, the phone is also used as a fitness tracker to log distance and speed, so dual use and helps me not to forget it.
Getting a buddy to help drag you in works, but it needs rules for it to work well,
the foil kite has to be totally wrapped up tight and on top of the stricken guys board (or set it loose, as it will not allow a drag back)
he has to lie out flat on the water with one hand holding his board pointing forward,foil down and either securing the kite with a leash through the footstraps or his full arm over the kite and holding on to a front footstrap,
when all that has been achieved the towing foil surfer can then approach the stricken foiler, himself already in the body dragging position, with his board and foil on its side,foil pointing downwind,
the stricken foiler has then to drift into him and grab his handle on the rear of his harness.
Only 3 weeks ago I pulled one of my buddies to shore using exactly this method,
while he was packing up his kite I was in the water practicing how I would hold my position downwind of him, and reassuring him I would be getting him back as soon as he had sorted his kite as described above.
It worked so well, in fact we got good speed up, with me using a foil kite myself helped a lot, as it has no habit of falling down with slack lines. and allowed nice soft kite movements to keep us moving.