We have an ACE on a Ford F53 chassis and handling was problematic until we added a Roadmaster front replacement HD anti-sway bar (eliminates the need for the CHF) as well as a rear Roadmaster supplemental HD Anti-sway bar. Made a significant handling difference. We also added a steering stabilizer more for safety (e.g., tire blow out) than handling, then loaded rig up and had an alignment done by a truck shop. Over 5K miles with no more issues.
COL, USA, Retired