>> I haven't learned how to secure a plastic pot or six pack and not get about as much spray in my face and the rest of me as on pot!
Yup, a good strong soil-blasting spray is a little like taking a shower. I usually sandwich pots between two web trays to keep them in place. Propagation trays are easier and you can do many at the same time, laying them all down flat and spraying mostly from above, but at enough angle that you don;t get soaked by back-spray.
To reduce the amount of water I use, I spray them a bit, then scrub them a bit, then spray them again.