This is a trip planning post, not a trip report (not sure which forum to place it). I'm headed to the Wind Rivers the second week of August, planning to cross Knapsack Col as part of the trip.
I recently acquired Nancy Pallister's FANTASTIC book re hiking off trail in the Winds. She advises crampons and ice axes for Knapsack Col, but also mentions that many hikers get over with just trekking poles.
Though I am an experienced hiker, I don't have much experience hiking over snow. Based on research online, I have impression from online trip reports that most hikers cross the Col without axes or crampons.
Anyone here have a view? Also, does the heavier snowpack this year change your view?