Finally have a radio showing up under baseband. I used the LC8 radio and ran the super wipe before and after flashing it. I'm now getting better speeds with ics, still not near what I had with GB, but at least it's workable now. Also, I've started receiving the data roaming error others are reporting.
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Device: T-Mobile Samsung Galaxy SIII
ROM: CM 10
Alt. Device: Samsung Galaxy S2
Alt. Device: Google Nexus One
Alt. Device: T-Mobile MyTouch Slide 4G
Wanted: HTC G1 Dream (Prefer Local)