yo foz,
that sucks, we used to have a similar situation at five rings although not as bad... The kb'ers would train before us, so we'd have to clean the mats before training or roll in their sweat and dirt from their feet, plus there was bags hung everywhere. One day i rock up and theres a bloody MT ring in the gym , taking up half the mats.
Pretty soon after that Daniel took over the building next door, fitted it out with mirrors and mats etc so now we have our own mats, probably about 5mx12m and daniel keeps them really really clean its way better.
Only downside was with brand new mats, until they wear in, you get hell blisters from dragging your foor when you shoot doubles
