We have just started taking Rosie to puppy classes and lucked into finding a new one in Washington (UK) called cleverpaws. Lucy owns 4 cavs and does agility with them. From the first session we have had and from speaking to the other owners that have been there longer she really knows her stuff, and the fact that she loves the bread means has has a soft spot for our Rosie.
I would definitely recommend her to anyone in north east england who want to train their cavs.
I am not affiliated with the company, just want to share some positive experiences.