In reply to Jon Ratcliffe:
Some are good and some are bad. Mostly you can see from the ground. A few routes on apiary wall were re bolted a few years ago but the re bolted seems to have lost momentum.
If you have not been before Go! There is plenty to keep you going. The bolting can be a bit old school and the grading unique. Consider taking a Clipstick and a copy of the beano to stick down your trousers in case of a spanking.
Make sure you stay for sunset.