Key flexing, was ...........

[Ron Nossaman]

> I'd always assumed that of the two elastic deformations cause by this 
> flexing (tension on the top side and compression on the bottom), it was 
> the former which needed resisting the most. 

I'd always sort of assumed that too, but I'm not so sure it's 
true.


>Unfortunately on the top 
> side, the length of the plate is limited by the backside of the fallboard.
> 
> Mr. Bill


That's what set the limit of the top plates in the photo, but 
it was plenty.
Ron N