You can very well have a chicken loop for 2 line kite. Actually it is very easy system and brakes can be used for safety release which also works well if line lengths are correct. I don't recommend handles, because it is very possible to fly any traction kite with a bar and then get used to "real" kites.
Hq kites any good? Rush 300 Trainer and apex hq4 8/11m?
So yes, I'm a big fan of the Apex as a 1st kite. They are a lot of kite for the money. My general advice to people is to get the 5.5m to learn on, and then keep it around for high wind days. 8m would also be an option. I still use my 5.5m Apex in gusty/trashy/mountain riding sessions. Then get a higher performance kite for the lower winds, where lightwind performance is more important.
FWIW, the HQ4 Montana X is an incredible kite. Excellent stability and depower, the 12m makes a great lightwind kite for the mountains or probably a general lightwind kite for a newer guy. I've given it to beginners who loved it. I would recommend having a more trainer-ish kite like a Rush or Apex 1st though, just so you aren't banging up your really nice kite during your initial learning.
If you're interested, I think I know someone who might be willing to let go of there 8m Apex V for cheap.
A water relaunchable single skin is a product that interests quite a few.
Absolutely. Also self-inflatable or completely strutless (0) LEI would be very interesting. And high AR race foil kite without bridle (not any f'''ing arc-kite) would be a fantastic product. And how about kite without seams, having just one piece of fabric? Much stronger and less drag and weight - also much cheaper to produce.
A self inflatable LEI would weigh too much. Strutless LEI are quite good, you should try one. A foil kite without a bridle would have too large a profile to be practical for kitesurfing, but they do exist. Seamless sail construction is quite advanced, though the technology could be made for kites the economics would be inhibiting, so definitely not cheaper to produce. That said of course there are smaller kites made from a single piece of fabric.
Kite designers range in intelligence, much like people. They do not seem to be of super high intelligence, hence they are designing kites and not rockets. They do seem to have some weird ideas about particular things, see some stuff the Duotone designers say. I guess the large potential solutions and variation of problems present in kiteboarding permit differing ideologies, even with their flaws.