Ah yes I recall seeing that thread. Thanks! At one point while doing something unrelated I mentioned this issue to the mechanic and asked him to loosen then re-tighten all 4 front bump stops and the bolts on the rear bump stops just to see if they would move. He reported he was able to do that with no problem. I'm hoping that all the fluid film gook I had sprayed into the mounts worked into the threads. I'd still like to pull them out, clean everything up and maybe put them back in with anti-seize or perhaps something else.