Steve, yeah... I keep vacillating between Onion and Shepherd.
I guess I could do something like this:
Two Days from Onion Valley to the tarn near Tyndall seems doable.
Is Williamson and Tyndall doable in a single day? Or maybe do Tyndall as a pre-dawn hike for sunrise from the top?
The Russell vs Whitney vs both decision could be made on the trail I guess. If I had managed Whitney last year I probably could forgo it this year, but really want to hit it again.
If anyone has actual GPS tracks for some of the sections, I'd appreciate it.
Particularly the bit between Russell and Whitney. That seems like the only way I'd do both at that point in the trip. Dropping down to Lower Boy Scout Lake and back up doesn't seem likely to work well.
