Hope that you sent a thank you note to Tulsa HD.
We just had major repairs to our 2007 Bighorn 3400 due to axle damage courtesy the Tulsa highway departments bad road work. Prior to the repairs our slideouts would pause while bringing in the bedroom and then the dining area. During the repairs they realigned all three slideouts.......no more issues. No work was done to the electrical system. We had heard no grinding or rubbing but there must have been just enough to strain the system.