Dropped to 4K, I think the stria is more even now, but it seems like I'm having trouble getting good contact on the toe, and there is something going on with the heel on one side with horizontal marks. I'm doing a rolling x stroke. Not sure how those marks are occurring, given the angle (heel forward, on part of the way down). I think I was getting some chipping too, on the heel area.

Anyhow, a bit frustrated right now, so taking a break. Here's the latest at 4K:

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