I have two bionics.
One of them works in GSM mode "out of box", both voice and data.
But the other one does not work with the very same SIM, it peeks up the signal and drops it in a few minutes.
Both phones have same SW version - sbf-ed .902, same radio unlock procedure.
So, I guess bionics have at least a couple of hardware revisions or Verizon did make a change to NV-items (or other memory, that is not touched by sbf), like it did for Droid 2 Global with changing SIM inlock code.
Regrading the HW revision - info screens in DFS and exesstel programs look identical.
So, I can confirm we have "deferent" bionics and it does not depend on SIM card for me.