In reply to rodw:
Try Facebook group Friends of Pex Hill (just search on facebook & ask to join) which covers Cheshire & Merseyside Sandstone (recent BMC guidebook, worth getting) - which has a recent discussion about this very issue. Topo guide to Back Slabs at Pex which is handy for beginners/kids learning to climb/abseil included in Files along with mini-bouldering guides to less-frequented venues in the area. That's if you don't mind crossing the new bridge!
Post edited at 10:08