An edge would work on anything, but with varying degrees of efficiency.
17m is a great light wind kite, IMHO preferable to the 15.
I would be careful with any self launch, aside from the edge being a powerful fast kite, I would be worried about damage with any self launch.
Really? I'm surprised. The kite must be robust enough to handle a self launch. What if you accidently tomahawk the thing, will it explode.
Where I ride we need to self launch and land most of the time. We have no beach, we need to pump up the kite walk into the lake then drift launch.
Anyways, my question was if you can reverse launch an edge? but I guess the problem you are getting at is they are fragile and don't want to bang them up too much.