Did this as a loop, Kings Canyon to Sweetwater, Esperanza, to Gould Mine. Most of the trails were loose rock to scree, with heavy elevation gains and switchbacks for Kings Canyon and first part of Sweetwater up to Wasson. Definitely preferred the Sweetwater trail on the way down. Views are beautiful, bit windy/gusty on exposed parts and top of Wasson. If I were to do this again, would just do an in-out without Kings Canyon.
Side note – this is NOT a hike I'd do in the rain. Too much time spent in washes on the trail and the drive getting there involves crossing over possible road flooding situations.