As well as being a bait to save the day in gruesome winter matches, squatts did a lot of other things, too. They were a great feed bait for bigger canal fish like bream, where they didn't break up balls of soft groundbait. (This is before poles, which let you simply pot bait in) Two or three on a hook often turned up the bigger bream or roach in a session. I believe that in some areas - down in |Peter Crabtree's neck of the woods, for instance -they developed a whole canal style based on loosefed squatts and light wagglers. A useful bait, tiny as they were, and I guess the demand has fallen away as fishing evolved into its more steroid-, sorry, fishmeal-fed version.