Originally Posted by John™
I had four or five plug failures in a row with the Stop-n-go plugger on the same hole. The rubber plugs can get cut by the tire cords. I plugged the hole with the string type and it lasted another 3000 miles.
Exact same thing that happened to me. I now use string plugs with great results.
Only thing the Stop-n-Go worked on for me was low pressure ATV tires with no steel belts. YMMV