You know Fran, it really would help if you owned up and were a little more honest at times.
For example:
"SL6 ending in # 60/61 on the front ..this part is also used on the RCR replicas..
the rear also SL6 ending in # 56/57..this caliper is only used on the rear of the SL-C and no other RCR product..."
Craigs car was clearly shipped with 60/61's all round. This may be an error on your part, but it resulted in a very dangerous setup. I can account for what they are as all 4 calipers form that car are now bolted to my P4.
Even 60/61's are questionable in terms of good engineering practice on the front 1" Corvette disc.
When it relates to safety issues with your products, you should investigate, not delete such information and bury your head in the sand.
With issues of this severity, it is only a matter of time before someones life is shattered by an error such as this. Please be a bit more responsible, and less of a "wide boy".