The big problem with Huck brakes is keeping them adjusted properly. They have a habit of wearing out only one brake lining on a side. Back when a lot of cars ran those brakes, flat-rate mechanics had a nasty habit of only changing the worn-out brake shoe, and hiding the other new one somewhere. After a few of those situations, they would have enough pigeonholed parts to rebuild their own brakes, or do a shade-tree job at home using parts they didn't have to pay for! Dad had to watch his employees like a hawk to prevent those kinds of shenanigans, and it cost more than one wrench jockey his job for pulling stunts like that!
Jerry