I have a Silverback 31RK(rear kitchen). I'm having things break in the cabinets, even the glass plate in the microwave broke. I ordered a Trailaire pinbox that is on backorder and I'm starting to wond...
I have a Columbus 34RK, nothing broke except a couple of coffee cups handles. My hunch is that the difference is on the suspension. Look at it in the webpage and compare it. You probably will see the difference.