I am back at it, and hopefully consistently for good now. I thought I'd share a tip for when you are trimming.
If you use a giffen grip you know that when you trim, the clay can go flying all over the place. I haven't seen anything commercial that really solves this problem unless your splash pan sides are tall or you really good at catching the bits as they fly off.
I guess I could try and make an instructable but that might take time. Here is a picture of the pieces flat on the ground. I use binder clips to keep the thing together.
Try it out it keeps the floor much tidier!