string seating - was bridge caps

[Ron Nossaman]

>" that string seating does not become superfluous until the indentation at the
>bridge edge is below the bearing angle line... thats where I brought in
the Sin
>function.. as it can be used to find that exact depth any given point on the
>bridge."

Which was part of my original observation, this indentation being the
probable cause of the false beat in the first place by allowing the loose
pin to flagpole.



>I think you have shown very good evidence as to how the bridge pins
holding the
>strings down against a swelling bridge can contribute significantly to the
>indentation of the bridge. 

No, not "contribute significantly". What I've worked out in the last few
days alone just convinces me further than it's the primary cause, with
downbearing force a very very distant second (maybe). 


>It seems obvious also that when this indentation 
>becomes
>too severe, string seating becomes useless. But these facts in no way 
>address the
>neccessity (or lack there of ) of string seating when the indentation is
not so
>severe as to be below the gradient of the string bearing angle. I have yet 
>to see
>anything written here that addresses that at all...grin... tho granted I
coulda
>missed sump'em.
>--
>Richard Brekne

I outlined this as a conceptual lead in to my first post on the subject,
knowing I'd have to go back and do it again at least once more. So here's
the thing. 

Given that most false beats in the killer octave area (where most string
seaters spend the majority of their time) are demonstrably associated with
loose bridge pins, how would a loose pin flagpole enough to produce a false
beat if the string was firmly seated on the bridge at the pin? It wouldn't
unless the string can move with it. If the false beat is there now, where
it wasn't last year (important distinction), why is it there? I'm saying
that I think the crushing of the bridge cap is the reason the false beat
happens, and seating the string hasn't fixed a thing, even if the beat goes
away temporarily.


Ron N