Cranial Prophylactic is reached by following the approach to the Perhaps wall, and then following the wall downhill. Look for a finger crack with a bolt about 15' up.
Fire up the crack, with a crux at the bolt. After this, the climbing eases and follows a crack system up and slightly left to a 3-bolt anchor. Many people rap from here, one rope rap.
If continuing up (I didn't), the route goes into a right facing dihedral with a pin. It continues up and eventually works left to a topout. Two rope rap or a one rope rap with downclimbing if this second pitch is done.
The bottom crack is really fun. About 20 feet. Nice 5.8 moves. After that it is a 5.5-6 swing to the anchors that goes up another 40 feet. But still fun and worth doing. Good lead to set up a top rope for the friction routes to the west.
There is a second pitch also rated 5.8 but with lesser quality rock, fun exposure and funky moves. The belay at the top is there but thin so be sure you equalize well. Not the standard 5.8 lead but worth doing once if you've done lots of laps on the lower pitch because it gets you more acquainted with the wall in general. Then you can walk around to the anchors of Paranoia Streak for the rappell. You can definitely reach the ground with a 70m rope.
The start is sporty and the crack can disappoint but I did enjoy the neat little step around move at 2/3 height. You know you are solid on trad if you can crank the start w/o the bolt!