Whirlybird,
I know what you mean, but we ran aerobatic competitions at Welshpool for several years very successfully, with the co-operation of Pool Aviation. Unfortunately, when T & V left, we weren't able to carry on and had to go elsewhere - back to Sleap as it happens, so we still have a competition in them thar parts (North-West of the Wrekin, that is...)
Ah, Welshpool, with its 1,500' circuits and the electricity pylons on Final.
Cheers,
TheOddOne