Nice gear list! This inspires me to get rid of some of my heavier stuff.
Yeah, 50lb pack and worn weight was killer, especially on my 155 lb frame. I'm glad I brought 2 sleeping bags for the 0-degree night and a 3 season tent. In the summer, my weight with food is usually in the 30 lbs range.
Having starred at the epic peaks of the western side of the Kern river drainage I think my next trip will be to your area. I just can't get over how beautiful the triple divide ridge line is. And it's a shorter drive to those trailheads since I live in San Jose.