Great sustained climbing, this crack needs to be a few hundred feet longer. The business is pretty G, although the blind placements from the chimney are pretty spicy but you can get a good luck before committing to the move.
A #4 protects the initial move out of the chimney.
One of the only true jam cracks in the Gunks, steep fingers to tight hands. Followed Jackflash in June 2007, fell on lead with Ursasaur in August 2008, and finally got the clean lead in October 2009. Blind placements in the crack before committing to the moves are necky. At the risk of a lawsuit, I'll say that a green alien and red c3 worked well for me.