Not sure how wide spread it is, but in Leicester at least there is a post DSA course on how to ride.
Roadcraft is less about the legalities and more into constantly and safely making progress.
I booked myself in after a chronic loss of confidence the other week (dropped the CB at walking pace on icy garage forecourt)
It cost me £70 for 3 hours, but if I had purchased a sportsbike (Roadcrafts target market) from a local dealer I'd have been given a voucher for £50 off.
Roadcraft is run by local instructors with the support of the local authorities.

