In reply to phja:
Whenever I am in the area I usually go to AW Stoke. Nice set of problems, with all sorts of angles and interesting use of volumes and shape of walls. Cave is BIG and fun and good exercise.
Staff have always seemed particularly friendly and welcoming. Well worth a visit if you are over that way. From what I remember the grading for the main area was done in colour coded circuits, so very simple to choose problems of desired difficulty.
There has always been ample parking space whenever Ive been there.
Also, I thought i may have taken a wrong turn the first time I went as the approach road/area looked a little unlikely at first.
Only been to the works once. Cant remember much about it.