I never did the CHF...Ordered Sumo Springs as soon as we got home from the dealership. They installed the Safety Plus Steering Stabalizer for me there.
Sumo Springs are the way to go, very satisfied and the worst part was removing rear tires.
Here locally, an onramp to Interstate make a hard curve...before Sumo 8 - 10 mph with a lot of Oversteer for correction and upper RV sway...After Sumo 25-28 mph with no steering issues.
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