Left of Contortionist's Forte (East side of the Catacombs) is another 3 bolt line. Start on the same crack but then bust out left to the bolt. The route has about 20 feet of the good, red-polished rock found in the Vestibule, before it turns into the sharp crumbly stuff more typical of the rest of The Monastery.
Protection
Three bolts plus cold shuts. Don't blow the first clip, or use a stick.