Rob,
this is incredibly helpful as I am packing and leaving for Peru in couple of days.
So I take it you were hiking in the mountaineering boots from the car to the basecamp and then used them again for the climb to the top?
How was the trail? I have very nice new mountaineering boots and am contemplating if I should bring them, I do not want to destroy them if the hike/ climb is on the rocks, sharp scree.
If you do Chachani, please, post here your findings too.