Seeing as the Guillotine is a great area to get warmed up at, this is a great route to warm up your psyche. The crux is right at the top trusting a tiny edge for a foot and reaching for the lip at the top. A must do while in the area.
Gopher climbs up the arete on a detached pillar split by the Guillotine chimney.
The Gopher climbs the detached block split by the Giullotine Chimney. It is directly to the climbers right of Barefoot Crack.
It is route 53 in Sven's guide for the Guillotine Area.
Just before the crux, starting to get up there.