> For the Cottonwood Pass trailhead, unlike, say, the one for Cottonwood Lakes, prior to 6/25, i.e. the non-quota period, there is no W for any of those days.

Ah, that is different. Calling the Wilderness Permit number (760-873-2483) is the right way to go. They may just issue you a permit! Please report back what you find out.