In reply to AMorris:
When are you thinking of going? It can seep a lot during wet weather. It's mostly steep, but there are some vertical walls. The ban on the o'ert road area has been lifted, just follow the rules on the sign.
Trowbarrow is nearby as well, which has a fast drying boulder and a slightly overhanging wall that stays dry in the rain.
North Wales might also be worth looking at - Parisella's and nearby areas are good if you want steep limestone. Conditions at Parisella's might be more reliable.