On the west side of pinnacle peak, climb up the gully to sundeck boulder and walk around to the the right and you will see a crack line that obvious that it is aid, crack goes up and moves right.
Protection
Rurps knifeblades(shorties), mico nuts can fit in pinscars.
having done this 1/2 doz times, it is closer to A.2. Some solid rurps to a nut about 20' off the deck scratch the bad fall factor of a real A.4. I am pretty sure a tcu fits higher still. The best nailing at the peak.