I have pretty much same question looping in my head.. crampons or no crampons. Got a permit for June 5th, hiking in a group of 4 overnight acclimatizing at trail camp.
So far my plan is to keep microspikes, ice-axe and a pole, leave the crampons in the car if get some solid input on not needing them before heading on the trail.
Oh and information posted here is pretty helpful, thanks all