Here are my plans. If anyone is planning the same/similar route and want a companion, please let me know.
Sunday July 24 - Agnew Meadows River Trail to Thousand Island Lake
25 - Twin Island Lakes
26 - Blue Lake
27 - Hutchings Creek Basin
28 - Meetup
29 - Meetup (Electra? Hutchings Creek if I skipped it?)
30 - Over Rodgers Pass to Marie, Davis, or Island Pass area
31 - Agnew Meadows
Another option in mind is to spend an extra day in Bench Canyon instead of going to Hutchings Creek the day before the meetup (maybe a SE approach to Electra and back to Bench Canyon?)
Hobbes, I believe you are also coming in over North Glacier Pass, though 2 days after me. Did you decide which route you were going to take from Lake Catherine to Twin Island Lakes? This is your image from another thread. I added in the blue line, which seems to be the one most take. But as you've noticed, many others have reported to have taken the red line path.