Since we talked about tribal knowledge: I wasn't aware of s\3626bs05.dat - Minifig Head - Half Front Face Optional Lines and it would have helped enormously when working on the western heads. The same goes for the torso subparts.
But there is more: s\45407s01.dat - Wedge 4 x 4 with 1 x 4 Side Plates - Peghole Tube Elbow is used in more than 45407.
I think the main problem is that we do not have a chart for these parts as we have for the http://www.ldraw.org/library/primref/
I propose to convert these useful subparts to primitives.
w.
But there is more: s\45407s01.dat - Wedge 4 x 4 with 1 x 4 Side Plates - Peghole Tube Elbow is used in more than 45407.
I think the main problem is that we do not have a chart for these parts as we have for the http://www.ldraw.org/library/primref/
I propose to convert these useful subparts to primitives.
w.
LEGO ergo sum