Can someone clarify what is the lockdownd situation for IPSF unlocked phones that have been upgraded to 1.1.3 baseband, then downgraded to 1.1.1 and soft-updated to 1.1.3 either with Dev Team or Nate's JB (via 1.1.2 to avoid misc problems).

Several people have reported that the IPSF unlock survives the 1.1.3 baseband upgrade. However, if I understand correctly, the patched lockdownd file in 1.1.3 softupdate assumes the firmware is not upgraded from 1.1.2.

Does this create any problems for people who have actually upgraded their baseband?
Is there a patched 1.1.3 lockdownd file that works with 1.1.3 baseband? Ideally completely patching the SIM check so that SIMs can be changed on demand?

Thanks in advance for any insights,