Probaby at those grades a few good things at Earl then. And Ilkley / Rocky Valley. Brimham has a fair bit too, but can be a bit disorientating on first acquaintance. Otherwise a lot of main Yorkshire Crags - Rylstone, Crookrise, Eastby, Deer Gallows, etc trend towards slabbiness.
Never made it as far as Great Wolfrey - was always put off by the long drive and the long walk to get there. Looks very good though.