Thanks for the feedback. By "oversheeted" do you mean where the angle of attack is past the point of where the kite stalls out and starts to fall?
A kite oversheets WAY before it stalls out and falls. I just mean a little oversheet. Oversheet is the point where the kite (or sail) AOA is past its optimal lift/drag ratio for the current wind conditions, but it may not start backstalling yet.
Also, from your description on tuning, if you're flying the kite unhooked than it should be at full power (as long as the depower line is all the way out).
Yes. Unless you're like me and like to have a touch of oversheet in the bar for special circumstances. I've also seen tall people who never unhook prefer to set their bars up so optimal sheeting is further up the chicken loop which means the kite will fall backwards when unhooked.
Are you saying that the full angle-of-attack range of the kite should be covered in about an inch of depower line travel? That doesn't seem right. I think I'm misinterpreting what you wrote.
No I wasn't saying that.
I do not believe that the bridle was modified. The kite only has one knot on each connection point. I looked up some of the bar documentation (not the proper model year) and it looks like the front lines can be adjusted near the swivel. I have not checked this on my bar yet since I haven't been home. If that's the case then hopefully that will give me the adjustability that I need.
Yes on RRD bars the main adjustment is usually from the front lines. Since You are using an OR bar (if I recall) I can't comment.
Is it proper to set the kite up that it stalls out when you completely pull the bar in (sheet in) and the depower line is completely out? My Slingshot KeyHD does this but my friends Slingshot Rally does not. I'm unsure which is the "correct" setup.
I'd say the key needs its front lines shortened (or back lines lengthened), the rally sounds tuned. Once again, I can't speak for those kites. Some kites are more sensitive to backstalling than others, I generally assume somethings wrong with the tuning when a kite backstalls while unhooking like that.
Hope this helps.