Don't worry about the bars, currently only one does it for me, the North bar until 2012.
Most important is the Microloop for what I do.
A stopper will only get you to a semi good level of airstyle.
Maybe Ozone one day ads it as add on to their bar, since then they would have a killer airstyle package!
Anyway, can someone jump the 19 please?
I use a Switch bar with the edge and I've been considering drilling the 2 holes in the bar to fit the loop. I'm sure it wouldn't take much to engineer a hook as well. Perhaps with aluminum at a machine shop? The bar is already so similar to north.
I've often wondered why you're not on the Edge. Better height, hang time, lower bar pressure, and it's just so easy to fly. I'll second that you call ozone with sponsor inquiry then start making mods as you wish. No love from north!