EEV forum is more of a time sink than a video game:)
Just stumbled across this thread and will try your fix after others try or fail.
Now, your wire inductors, are they at right angles? Hard to tell from picture angle. Or maybe they are far enough apart to prevent coupling?
Anyway, good stuff, read it all. I'll also have to do the 50 to 100mhz mod while I'm at it.
What about calibration, will it need a cal lab adjustment after?