Pen and I just got back. We carried our skis up Taboose Pass, skied and carried down to about 10,000 on the other side, looked toward Mather Pass and abandoned the trip.
There is virtually no snow to ski on in the Sierra at 11,000 feet. The conditions at and around Taboose Pass remind me of late June in normal snow season. IMO, give it three weeks and you can walk anywhere up to 13,000' without encountering much snow at all.
We will try the trip again next year.