well they came in yesterday and I've got them installed. Right now they're hooked up together w a T connector so you fill them both at the same time, this way it can flex off road. I was reading in another post that someone installed a valve where you can switch between open and closed, but when it's closed it lets the pressure equalized before it locks.
Anyone have a link for one of these, doesn't need to be electric, I don't mind getting out to switch it. Basicly I want it locked on road and open off road.

Anyway, I did buy the longer bags and I'm glad I did, for me they seem to be perfect. When pumped to 35 psi the back end is a little taller than the front even w the tbars cranked(looks pretty cool). Also you can put as much weight as you want back there and it doesn't sag.
Overall it was a great $75 investment. Also I installed the filler valve inside the gas tank door so it's easy to get to but still covered up.