Enlightening regarding the relative costs, Alan. The Knockhill races have been and gone (4/5 Aug), and Malcolm Smith posted this-
https://tentenths.com/forum/showthread.php?t=153094
Worth pointing out that the STCC didn’t start off as an HSCC Championship, and that the club only originally looked after the racing side. They took over the admin and incorporated it into their this ‘portfolio’ this year, at, I believe, the request of the STCC.
Full history of the STCC here-
https://www.supertcc.com/history.html