Can someone detail for me what is allowed in Spec Miata that is not allowed in Improved Touring? In other words, what is it about a fully-prepped '99+ SM that is not compliant to ITS? Or what about a '90 or '95 SM that is not compliant for ITA?

For background, I'm asking for Scrutineering purposes in Super Touring Light. There's a lot of confusion - and outright cheating - that is causing some consternation among scrutineers.

I'd make a personal comment about "leave it to the Spec Miata crowd to f**k up a good thing" but I won't...

- GA