We did the CHF in front, but have not done anything to the back. Also got the coach aligned in first 30 days of ownership. I have to say, any improvement was minimal, HOWEVER I didn't feel the coach handled bad to begin with. Except for the windiest of conditions, it has been one-handed driving since day one, so no complaints. I do think the coach handles best when I'm not towing the car, and perhaps addressing the rear suspension could help the handling while towing as well.
Mike & Suz
2014 Georgetown 351
Pontiac Vibe toad
Buck & Patsy, the boston-mix guard dogs