Yes, Harvey, dreaming of returning. Always.
Harvey, unfortunately I never take enough pictures. I didn't take a
single one on my climb from Crabtree lakes to Discovery Pinnacle, except for some flowers and a shot of Whitney from the top of DP. (I think I was so focused on the work at hand that I just kept plodding.) There are two pics at the top that show the Trail Crest trail and the slope up to DP, coming in the next report. ...Tell you what, Harvey, YOU climb it next month and take the pictures, and I'll help with a report.
All I have is words... If you can get over Crabtree Pass, you can climb to Discovery Pinnacle! You will encounter
rougher terrain circumnavigating the upper Crabtree Lake than you will climbing to Discovery Pinnacle. If I were going, I would drop to the lake, load up on water, then climb westward the 100m vertical to the bench at 3750m. Then switch back and head northeast, climbing the steepest 200m, finally curving almost north, climbing the last 200m+ to DP. It's just a slog. You might find a sandy spot or two that slides you back down, but mostly, it is just a steady grind to the top. It is only 500 m, and
less than the elevation that the 99 switchbacks climb on the other side of that ridge!
Here, I created
a map of what I would suggest for your route. It's Gmap4, so you can switch back and forth between "t4 Topo" and satellite. Zoom in on the lakeside with satellite, those boulders will be the worst part.
The most dicey section I found was actually the descent from DP down to the trail. It is short, but it's dirt with pebbles and small rocks on the surface, so easy to slide, difficult to find a secure spot to step. On the S side, the top third is simple and easy class 2. On the steepest, I used hiking poles, and never touched rock with my hands.
