you guys aren't having signal issues because Verizon is blocking rooted users (if this was true, your ROOTED Stock ROM wouldn't be working properly either)...you are having problems because ICS ROMs on BIONIC are ALL still in beta phase and data is yet to be completely ironed out. This is clearly stated in the OP of the thread you downloaded from. Honestly, with the locked bootloader it is pretty unlikely we will see a 100% reliable ICS daily driver until we get an official release.
*that said, I'm not bashing the ICS ROMs that are out there, what has been accomplished thus far is amazing and those devs deserve praise.
If you are having problems you can't accept, wipe all data and caches, format /system, and reinstall a STABLE ROM like Stock or Eclipse (Eclipse is 100% stable, so if you have issues, you likely messed something up by flashing.)
Hope you guys get it worked out.
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