ACE Key codes (xx2247 etc.)

[Fred Cisin]

On Sat, 5 Mar 2016, Fred Cisin wrote:
> always use even number depths on some cuts and odd numbers on others. Such 
> rules are necessary in designing a new key, but irrelevant for making a 
> duplicate or replacement)

CORRECTION:  NOT irrelevant.  If you have a cut that seems to be between a 
3 and a 4, it is essential to know if that cut is always an even number or 
always an odd number, and very useful for checking your work for errors.