John,  It's admirable and courageous of you to confess a mistake like
this so fellow MMD'ers can benefit from it.  I've made some big ones
with pianos, too, but never exposed them to public scrutiny as you
have.  I consider myself a beneficiary of your forthrightness, as I
use the piano tilter and will be more careful in the future.  Thanks.

Larry Lobel, Virtuoso Piano Service
Petaluma, CA