David.. I noted that you've not entered the championship, hence why you probably were not asked to enter the debate up to yet. There is no point opening discussions up to everyone outside of registered competitors as good valid points may then get missed by 'noise' which may or not have validity raised by someone with no interest or indeed knowledge of the subject.. There are several thousand people in the club, however there are less than 100 registered to compete..it makes sense to have the debate which may affect a few, between the competitors that show interest by registering and competing/ supporting the championship. Tyres is only one thing under discussion- ultimately the championship follows MSA rules and allows 1B tyres, the gentle(person) agreement, to be non exclusive David pointing out the sexist comment, is nothing more than an informal discussion/ agreement that was had to prevent a tyre war with people spending significant sums in that search of the unicorn of tyres however it prevents nor excludes anyone wishing to change or use anything from the list.