Just got some very interesting news from American Propeller in Redding,
CA.  Seems all four of the blades were found to have cracks at the hub
where the lag bolt enter the wood and they are no longer serviceable.  I
had called American in the past and asked about some wrinkling of the
paint at the hub and was advised that it was normal due to shrinking
wood core material.  I will be contacting MT to see what they will do
with the prop, expect not much, as it is seven years old, about six
years of use as the plane was down with panel changes and painting over
the seven year period.  This means new prop.  Seems like MT is not the
prop for these applications.  I'm going to investigate the alternatives
and unless MT makes good on it I won't be using their equipment in the
future and will advise here on the outcome.  American said that they
have seen this in the past but couldn't recall one on the IVP
application.  Todd at American is sending me a written description of
their inspection results before I call MT.

Has anyone else had an issue like this with their MT propeller?

Pat Brunner
N98PB