Sway Control Again

I've been reading all the posts on sway control using WDH, friction and sway bars and I'm confused.  I'm use to driving a Class C and pulling a 5th wheel which don't have sway problems.  I will be in the near future pulling a model 179 with a Silverado 2500 HD standard box 6'6".   Will i need any or all of the sway control devices.  Does this depend on the tongue weight or pull vehicles wheel base?  Please advise.

We have a section discussing sway in the "manual" thread here:  http://www.rpod-owners.com/forum_posts.asp?TID=1723

That will give you an idea about the causes and how to prevent it (tongue weight is one reason it occurs and an easy way to correct it on the road).  Longer wheelbase vehicles are more immune to the effects of sway once it starts but won't prevent it and can still be thrown into a dangerous situation.  The pods seem to be less prone to sway in general but many of us went a while w/o any sway control and then suddenly had a day with cross-winds which made them want it.

When we purchased our 177 in 2011 we brought it through a terrific snow storm across the U.P. of Michigan; no problem with sway control as there was easily 6+ inches of snow on the roads.  However our first trip was a problem on dry roads; we tow with an 08 Explorer and could not go above 45 mph without a terrible sway problem.  Got a friction bar and for the small investment (under 100 bucks installed) we have had zero issues, even when we have found ourselves in 30+ mph crosswinds. 
Am curious as to how well the 179 will tow with more weight, longer trailer and more wind to move as you travel down the roadway without having some kind of friction control, unless you have a full size TV to pull it.