Matthew - I hit the summit on Tuesday the 13th. I brought microspikes but i did not use them. A little over half the people I saw had micro spikes and half did not (one group just had tennis shoes on). Hiking poles were a must for me. I did not see any need for an axe on Tuesday and I can't think of any place where I would use one. The people I talked to that went straight up the mountain to the right of the switchbacks thought it was a mistake and it looked like it took them much more time.
