Sorry, it's a duplicate post, but especially applicable to us Scramblers... I've just completed the Advanced course with Terry Dodd http://www.sortedride.co.uk/ which I heartily recommend. It is especially suited to Scrambler riders, and probably Bonnies too (as it is not "balls-out fast") - one benefit was being guided through fantastic A-roads mostly, into Shropshire and Wales. As one goal is to learn about taking bends safely, guess what - he takes you on bendy roads. Oh joy! But I learnt a lot about riding safely and smoothly. I honestly thought I was good enough beforehand, having read the Police Handbook, watched the Mike Waite DVD and taken a cautious approach... but the practical guidance has transformed my confidence, made me safer, and added (yes added) to my fun!