Trimming question

[u/Single-Fee-1708]

This has recently started to happen to me while trimming, and at first I thought the problem was that I was not pushing hard enough or the wheel was too slow (which usually fixes this problem for me), but my usual fixes did not work. I managed to get it pretty even eventually by slowing the wheel down, but how can I avoid this from happening at all?

[u/trashjellyfish]

I find that it helps to level the bottom of the pot with a sureform/grader tool before I start trimming with trimming tools.