[Blackrock]

I started busting tires the hard way when I was 10 years old. Fixing flats on tube type tires, 3 piece wheels and farm tractor tires. Dad hardly ever took a tire to town to be fixed.
Worked 40 years in the car, truck and ag industry doing it all. Weekends helping buddies mount new meats on their lifted trucks. From wheelbarrow to earthmovers I never met a tire and wheel combination that defeated me.

A lot of tire shop managers are just managers with limited practical experience. The guys busting tires have maybe one year or less and turnover is fast.

Their are two types of tire lube; the liquid soap and the gooey rubber grease type. Knowing when and how much to use will make a job go real easy. If they are breaking the duck bill then they sure as heck don't have a clue how to use the machine and to lube that bead coming off. On a rim clamp tire machine there is and adjustment to keep the duck bill from ever contacting the rim.