Sanderson Bass strings?

[Lance Lafargue]

I'm restoring a 1913 Steinway "O" and I am close to ordering bass strings. 
I saw the Sanderson bass strings at the convention (with the nodal point
added at the end of the winding) but did not study up on them.  Anyone used
them?  Any thoughts or opinions?  Price difference? Thanks.
LANCE LAFARGUE, RPT
LAFARGUE PIANO SERVICES
New Orleans Chapter
Mandeville, LA.
lafargue@iamerica.net