In reply to Oli: like i say oli i dont think its more than E5 as its really only 1 move and soloing it and leading it arent really any different apart from maybe psychologically having a rope.
you wouldnt really want to fall of though cos the slab will spit you backwards away from the good flat landing area.dont think a mat would help that much unless its the one under the wave at the foundry.
think i commented on the route in the rf database.
think the hardest grit route i have lead is an E4 but below that my next hardest is an E2 then a few E1,s but i have on sight solo'd a few E4's and E3,s.all my harder grit routes have been solo's as my gear placing is poo lol
rich