We just came from Parent. We planned to go to Disappointment, but were blazing our own trail, and decided to set up on Parent instead. Not sure if Disappointment is much better, but we had no luck fishing all of the structures. Folks in town reported that it was really hit and miss right now.
When we were planning Disappointment, the northern end looked most interesting in terms of structure. I'd focus there.
I wish you luck!
Currently, section hiking the SHT from Hartley Nature Center to the Otter Lake Road 270° degree overlook. 157/272miles complete.