Yeah that's the one, you know the "Ian Vickers could only stand on it in two places" (?) slab of legend. I don't know for sure how high it is, but its not short, pretty highball to the end of the hard climbing then a bit of easy dirty soloing to get out apparently. I always thought they were going to fill Stanworth in though weren't they? Obviously they can't now that Britain's (the world's?) hardest slab is there. Of all the places. :?
r-man, yes he did do Toxic Bilberries and Vortex aswell. Andi it was Gigantic he did ages ago; he couldn't have done Toxic "ages" ago because Parry only did it in the last few years. Knowing Gaskins' habit of having top-roped most "hard" (what, UK 7a? Path!) grit routes, he probably did it on a rope sixty years ago...