Andy, we've already argumentated this, many times (see the link you quoted for the thread for the last time you complained about this). The number that's on the block is irrelevant, as it is absolutely no evidence of compliance, nor is it required on the block for it to be compliant.

If you think seeing the number stamped on the block is sufficient evidence that someone is not cheating in Super Touring - and Improved Touring, too, since it's the same exact reg - you're not using your imagination.

GA