Here's today video - Trimming a Plate.
After I throw plates, I let them sit out for day, flip them over, cover and let the clay moisture equalize during the next day. Its easy to get wonky plates - they must dry slowly and evenly. At minimum, I wait two days until trimming. The consistency of the clay is of hard cheese.
I don't use my splash pan to catch the trimmings because it fills up so quickly. So I let myself become buried in chocolate shavings and sweep them up at the end. Enjoy!!