When it Gets Thin...Pound in a Pin.
If you are into first ascents, or aid climbing, or want to make it back to the ground safely on a big alpine climb, there is no arguing the value of the good old fashioned piton. When I'm heading up a big first ascent in the mountains I like to have a few blades, a few arrows and most importantly a handful of baby angles on the rack. I can't say enough about how useful baby angles are for creating solid rappel anchors, or establishing a bomber piece of whipper catching pro in a funky crack where a solid cam is next to impossible to place. If you need these things....you really need them. If you are doing nail ups on el cap....you really need them...if it is a knife blade crack...you really need them...If you have ever pounded in a pin and heard the pinging singing of a bomber placement placed to the hilt, you know the primal joy of nailing.