Hey Steve, did your experiments look anything like this?
http://www.usakite.com/lift2.htm

--- In kitesurf@yahoogroups.com, "hungvuatnetcomdotca"
<hungvu2000@r...> wrote:
> --- In kitesurf@yahoogroups.com, CC - Steve <kite_head@n...> wrote:
> > allowed it to fully depower. A 2 line or 4 line sled shape cannot
> achieve 100% depower unless the front lines can move from the wing
> tips to a point closer to the center. I experimented with this once
> with some
> > limited success a few years ago. I think it may have potential.
>
> This can probably be achieved fairly easily with some "integrated"
> bridle system and some connection points closer to the center. If I
> have time, I may do some experiments with my Wipika Classic 3.5 (it
> already has some connection points closer to the center).
>
> > The biggest problem with the Seasmik design - from my experience
was
> that there was too little bar movement to go from no power to full
> power and too much bar pressure when at full power. I had some
ideas
> for correcting this but did not want to spend the money to fool
with it.
>
> "Too little bar movement to go from no power to full power" is
> probably common for all foil shape. But if we are being able to do
it
> for a sled LEI then it would be the same as now (sheet out to
depower
> the kite up to a point - arms fully extended and trim strap fully
> pulled) and then we'll be able to to simply drop the bar to 100%
> depower when in trouble (also flip the kite over on the water and
make
> it ready to relaunch).
>
> "Too much bar pressure when at full power", why can't you simply
hook in?
>
> > I do like the kite on lwheels and snow though. It is great to be
> able to depower totally and on the fly. You are right that a leash
is
> unecesarry with this kite Hung. You can sheet out and fully depower
> on front lines
> > only and/or you can stall it and back it to the ground, It is
> absolutely the most fully controllable kite I have ever flown. the
> only other that comes close is the Revolution.
>
> Sounds like trying to eliminate the leash (very cumbersome to some
> competitors) this way is MUCH BETTER and SAFER than making it
a "part
> time" safety leash.
>
> Hung.