Jeff, I was not referring to the Safe T Plus but I do advocate that you should have one on your coach as we have always had one and during a passenger steer blowout with dear wife driving at 60+ mph the coach went straight down the highway with little to no effort on her part.
The MCO that Hendersons purchased from Roy Mueller is a control device that is added to the steering cross link and is operated by an electric actuated air cylinder that allows you to adjust the steering axle to track straight down the roadway when you encounter road surface pull or crosswind.
We had ours installed by Roy and used it in conjunction with the Safe T Plus. The Safe T Plus has a 200 lb plus spring that enables it to do its job during a blowout but when you are in normal travel mode and have pavement or crosswind drift and a constant herding of the coach this Steering assist allows you to do a correction from your drivers seat to get coach to track strait down the roadway. It takes a lot of constant steering correction out and makes driving much much easier.
Both are in our opinion, mine and my wifes, are an essential safety device in a coach that weighs from 30,000 to 54,000 lbs. Due to the chassis and steering gear on our 2017 Entegra we cannot use either unit and we are not pleased with this in our opinion safety dilemma. Our research has found that nothing will work like the Safe T Plus or the Steering Assist. However we are not having a steering wander problem with the Entegra Cornerstone like we had with the 2004 Marquis.
For what its worth - we just had our Cornerstone in to a Spartan certified facility and did mention what we thought was a steering play item. Matt asked us if we had had the axles aligned. I was taken aback by this question as it is a new coach. He indicated that they have over the past several months had numerous coach's in their facility and all of them had axle alignment problems. His comment was "What you are feeling in the steering is most likely being created by out of alignment axles and is why you are correcting with steering wheel so often due to the tracking problem they are causing."
Some will believe that is only on coach's with tag axles, however, out of alignment for two axle coach's will and can create some of the same problems with steering or tire wear. One thing they did mention was that if you are not seeing tire wear you may be getting wear in other areas of your chassis linkages/bushings that also are very costly to repair. They have found bent arms and struts when doing chassis reviews that owners never complained or asked about.
Their recommendation I was also taken back by. "You should have your axles checked for alignment every year. The roads you are driving on with the weight of your coach is creating damage that you cannot see." But the more I digest his statement the more I realize how we cringe when we hear the loud bangs when we travel.
