You seem to be implying that blades should somehow be overhauled to come out
as new, as if they were engines being overhauled to factory specs. On what
do you base this? I've attended seminars given by prop shops with decades of
experience explaining, with ample documentation, both visual and written,
all the things a prop goes through in flight and on the ground, the stresses
it withstands, etc. I've also seen firsthand what a prop blade failure can
do to an engine and aircraft. Why anyone would want to cut corners on prop
overhauls and maintenance on the basis of statements such as "guerrilla eye"
is beyond me.

"karl gruber" wrote in message
oups.com...
That's what I said. The guerrilla with the grinder takes off so much
material that it can only be "overhauled" three times. Even with
perfect rock chip free blades.

The other problem is the grinding is done without templates, completely
by guerrilla eye. The blades NEVER come out as good as new.