We just purchased a used 2017 Forrest River 1640 ESP popup with super lube hubs. I have inspected and greased the bearings in our old Jayco popup many times, but that one didn't have electric brakes and the procedure was very straight forward. Do people inspect the bearings every year or just grease them thru the super lube some years? I'm concerned about starting this not knowing what I'm getting into, also F. Rv. says not to mix different brands of grease and I have no way of knowing what was used before I got this. I have seen F. Rv. video on this but it seems to skip over a few key steps. Does anyone know of a good step by step description or video of manually greasing the super lube bearings? Any help or encouragement would be really appreciated.