So here they are, all happily trimmed. One decided to fly off the wheel and smash itself against the floor, so I only have 20 cups now rather than 21. I think I made 22 or 23 in total.
Just have to say, I think I've gotten a lot better with throwing off the mound. Making all those sake cups really helped.
My only issue this time was that while trimming, a number got a little distorted into rounded triangles because of the Giffen grip's grip. I was able to round them out again, but I'm wondering how that will affect the final product.