I can really appreciate the advantages of tanking if you have vast numbers + great for storing rag. I am terrible at keeping rag!!! I probably had 150 on the go at the most when they were in season.
Bait digging, collecting, storing, turning etc is one of the reasons I do far less sea fishing. Don't get me wrong, I used to get a lot of pleasure digging and collecting top quality bait but is so labour intensive - I used to spend as much time digging as I did fishing!
It was a phase I went through that is not compatible with my home life at the moment.