Welcome to iRV2. I believe you have found a great resource for answers to your questions. I would suggest you browse the Workhorse Forum and ask a few questions. I have a W22 and have done many of the upgrades you have done. It certainly improved the handling but I believe these large coaches will always react to strong side winds.
Post often and share your RV adventures with us.
Don & Bev Morgan Weyauwega WI, 05 Itasca Horizon 40KD, 400 HP Cummins, Delorme GPS LT 40, Toad 07 Saturn Vue AWD, Air Force One, TST 510 TPMS, Mayor of Weyauwega 2007 - 2013, Waupaca Co Board Supervisor 2010 - 2014