There is an RA in Essex. (groan) If you find Intelligent Horsemanship page there is a guide to where all their RAs are based. Much as I hate Monty etc I imagine it would be fine for a brush up, just don't let them stick a flippin' Dually on your horse unless you actually want one! Be really firm about that, and also about no join-up; once again unless you actually want it.