In reply to Darron:
Grinshill is pretty good... probably the best variety of problem styles and grades and I reckon a bit quicker drying than nesscliffe.
However, it can be a frustrating winter venue because (as with all the Shropshire sandstone) it is really soft rock and gets really very snappy when damp. I’d say it needs a good two days of drying if you don’t want to pull flakes off and crumble crimps, and it often seems like it’s never quite dried out before the next rainy day!