[pct-l] Flat shoes to start?

[Sarah B]

A week ago I bought what I think is going to be my first pair of shoes to start the PCT in.  They're running shoes with a ton of mesh breathability, but the bottom is very flat and low on tread.  Yogi's guide says this is okay and I'll need a new pair with tread at 500 miles anyways - but I'd like an affirmation or two if you don't mind.Starting in flat shoes is okay, right?
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