[Tony G.]

Well said Andy !

For my esteemed colleauge with team 930, the problems with Automatic fasteners that Andy & I speak of, and the "factual data" you asked for can be obtained from the following source:

"Seismic Engineering"
1994, Volume 2
ASME & S.L. McLure

Glad I could be of assistance.

GOOD LUCK ALL
Tony G
Team 569

Engineering Manager
Atlantic Industrial Technologies