karl gruber wrote:
That's what I said. The guerrilla with the grinder takes off so much
material that it can only be "overhauled" three times.

Twice. Overhaul at 5 years, again at 10 years, and at 15, they're too small to redo.

George Patterson
Give a person a fish and you feed him for a day; teach a person to
use the Internet and he won't bother you for weeks.