In reply to theomoore:
A supplementary word of caution........ The top of Endless Flight is quite tricky and the gear poor. The top of the Tube is a well protected jug fest by comparison. If you blew the top of EF then it could be both spectacular and very painful. I'm not sure how good the cellphone coverage is..... (And someone suggested Second Born!).
Some safer harder routes (some already mentioned); Over the Edge at Simonside, Lost Cause, Original Sin (If you trust your belayer) Childhoods End, Hard Reign, Outward Bound, Sandrider, High T, Overdrive and Underpass.
Solo Russet Groove first.
Steve