[Elecraft] Keying Mod; Construction technique

[Paul Clay]

I just purchased the KPA100 for my K2 (serial 
3640), and in going over the instructions I see 
that the installation of the keying modification 
is highly recommended.  I'm a little nervous 
about the part of the mod that requires the 
cutting of a circuit trace.  What's the best way 
to perform this operation?  (Kind of a shame to 
have to hack at my K2 this way, but you gotta do 
what you gotta do.)

- Paul, N6LQ