Yep, transitioning to a weft-faced weave would certainly work to widen the pouch without so much joining. This is the traditional method of choice for many peruvian braided slings. I didn't want to sacrifice my patterned warp (that I'm continuing in the pouch edging) Maybe next project!
The braid isn't so much out of control as just jumbled. I don't particularily like the mix of colours that the layout for the strands dictated when braided like this. I should have done somthing a little more clever but this was "intended" to be a prototype
I have another half-finished design that is braided on a board!
Here's a tablet-weaving link for anyone interested:
http://www3.sympatico.ca/kirkflowers/btablet.html#OTHERS As for the laws concerning slings, I think that this is probably true most places. A sling used in a dangerous manner will be subject to interpretation as a weapon regardless as to whether local/regional/national laws specifically reference slings. I live in the city, and don't feel comfortable slinging anything more threatening than tennis balls (even safer if you have a dog!). I'll sling rocks into the ocean if there are few enough people on the beach (ie no one within range of a pulled throw). I do most of my slinging when I'm out hiking.
Matthias