[pianotech] New string broke twice

[John Delacour]

At 17:47 -0700 12/07/2011, Joseph Garrett wrote:

>I'd normally find/design a core of somewhere in the .045" to .043" 
>for a winding of that overall diameter...

It's the overall diameter that is wrong, not the core.  To use a 
#19.5 - #20.5 core at this point in the scale would be highly unusual 
and besides even they would be overstressed.

JD