I have a Jeep, and the only time I would disconnect the sway bars (front and rear) is for slow rock climbing or for turning around in very uneven conditions.
Best I recall to only have a sway bar connected in the front causes under steer, and only having one connected in the back is dangerous and not recommended as it will cause over steer.
If you try detaching the rear bar on the quad just be careful.
I'm curious how you like it.