Brief report:
Climbed with awagher. Our plan was to climb the Ayoloco route as a day hike, coming down via La Arista del Sol. We started at 2:20AM from La Joya. Lost a lot of time bushwacking in the dark in the section below the first saddle going through multiple cow paths. Partner came down with AMS and we retreated back to La Joya. Our highpoint was 4700m (15,420 ft), a bit beyond & above the Ayoloco hut. It was a cold morning (estimated upper teens before sunrise), but sunny and clear (no clouds whatsoever). awagher said he's planning to come back and try again.