FYI - Believe these two docs should be added to TSB's 22-001-14 & 22-003-14
Reason: RoadForce and SmartWeight combined do a great job of identifying an opportunity to index the tire & wheel for a "more round" assembly and use less wheel weights by focusing on the "Static" unbalance. The problem is all the focus is on "Static" which is up and down movement of the assembly from an assembly and balance prospective. The opportunity of a Shimmy condition in our vehicles is extremely high after RoadForce and Smartweight since the focus of correction is on Static and leave a perceived acceptable amount of "Couple" Unbalance in every assembly.
I am attaching two documents which discusses the importance of mounting the wheel correctly to the balancer (#1 Reason for vibration related comebacks) and Residual Unbalance phenomenon (#2 Reason for vibration related comebacks). The reason these two things are so important is they are most common reason for the issue but also the most common issues that are ignored and not addressed. People should a whole lot less time worrying about RoadForce when they should be worrying about the basics. Unfortunately for most shops their equipment is doing the assumptions for them and so the right decisions on correcting for conditions can't be made properly. Customers should be asking shops if they have a Direct Drive Coats Machine with ProBalance Technology, Low Taper Collets, and Adjustable pin Plates. If they do then you are Good to go! Hope this info helps.