Looks like the Radon legality has been clarified.
http://www.apexspeed.com/forums/show...ewpost&t=57628
Quote - FF/FC rules:
1. #11095 (SCCA Staff) Clarify the Radon Spec line.
Effective immediately, in the FF/FC Alternate Vehicle Allowance table, clarify the Radon FN?10?2000 (2011) notes by adding the following language:
“Cars may be raced either as delivered, under the 2012 rules
or as modified to comply with the current rules.No combination of the 2012 and current rules is allowed.”