http://www2.towerhobbies.com/cgi-bin...?&I=LXB867&P=7

This is a Dave Brown mount, if you drill it for nuts without grinding out great chunks on the bottom of the beam to provide a flat surface for the nuts, washers or whatever you stack on there, the bolt will be forced to bend. They always fail a some point if you do this. Even grinding big chunks out for a flat leaves a very weakened beam.


This is the worst thing you can do to a DB mount and it completely destroys the integrety of a good mounting system.

John