1/2 punching

[Ric Brekne]

Hi David

It lowers the effective key ratio just a bit and significantly impacts 
touchweight.  I generally sloif the half rounds and glue a strip of 
flange paper along the backs of balance rail pins for whole sections. 
Works great lasts a long time.  Usually about 0.2 mils is enough to do 
the trick.

Cheers
RicB