In reply to chalkyjim:
Having spoken to a couple of people re the Earl's Seats projects I've heard the accepted rule of engagement is to be ground up. Before hearing this I put a top rope on the wall left of Womb With A View and it is VERY pebbly. Also a difficult onsight as I seem to remember that a few of the foot placements were quite blind from above. Some of the crucial pebbles were looking fragile!
It became apparent that it was out of my league so I ceased trying fairly quickly. The Yorkshire Wad Squad are free to choose whatever ethical approach they please but my personal opinion would be towards a careful top rope practice ascent. My reasoning there being that, whilst ground-up is the more ethically pure approach from a style point of view, in the interests of preserving the rock, the fewer goes that are required then the better. I also seem to remember that I thought the crux would be the last couple of moves. You get to a chicken heady crimp and then there's a fair old way either trending left or going straight up to get to the top. With that in mind, there's great potential to have lots of repeat traffic over the fragile, pebbley moves lower down before unlocking the harder moves at the top.
Just my tuppence.