For a tremendous improvement in steering, make sure the steering box is adjusted properly. Once I tightened up the box, the travel of the steering wheel was improved. I did the CHF next. Works great for the 18 wheels passing us by at 75 MPH. Did a front end alignment next. Even better steering input. I installed a Safe-T-Plus, mostly for safety purpose's. The last item I installed were AirTabs to the trailing edge of the coach. Our Class A (on a 2016 F53 chassis) is so much better at going down the road. Because we live in AZ, the 18 wheelers can travel at top speed limits (75). I really only like to drive at 65, maybe 70. But that 10 MPH difference pushes things around. After all the mods, now I barely notice them passing us. In CA (where the trucks do 55 to 60 MPH), I laugh at them!!!!
When I first drove our 29.3, it really opened my eyes to how these things suck stock. Now I'm relaxed and enjoy our trips!!!