Finding a Good A&P

OK, I have a controversial question. How does one find a good A&P
mechanic. I just bought a Piper Turbo Arrow III recently and I want to
find a mechanic in my area (Central Wisconsin) that I can trust and is
competent. I am interested in hearing about how folks find the good
A&Ps out there, other than by pure luck.

I have had a couple of disappointing experiences with A&Ps where they
missed some pretty significant problems. I found one through word of
mouth. The other, well, I found the closest Piper Service Center near
me (figuring that they had special knowledge and expertise with Pipers
-- turned out to not be so).

-Sami