It's very hard, but doable, on lower. But seconding it would be dubious. So here's what I did. Belayer belayed not in the cave, but at the top of the fixed rope. I back-cleaned the first two draws, then climbed the route. On lower, I got to the fixed biner (left side of the shelf traverse) and went in direct. Unclipped the first draw from the rope (right side of the shelf traverse). Now, the belayer repositioned all the way down on the main trail, directly below the anchor. I clipped my side of the rope into the fixed biner, cleaned the first draw (might have to climb a bit on the traverse shelf to reach it) and lowered.
In the cave just uphill from Playing with Fire. Walk uphill from the other climbs. You'll pass by a MASSIVE cave; skip it. The trail will then basically u-turn to the right and go uphill towards the wall. There's a fixed rope. You get to a cave, but you have to go back INTO the cave to find the start.