Primitive substitution in the minifig arm

[Magnus Forsberg]

The "skeleton" of the generator is hardcoded into MLCad. Mike Lachmann passed the structure to Mike Heide for his:
https://ldraw.heidemann.org/index.php?page=ldminiassi
LeoCAD's generator offers you to change the arm type, but I guess the parent/child lengths cannot be changed.

So, if we change the design/length of the arm we're going to "brake" the Minifig Generator, in both LeoCAD and MLCad? Or make it useless?

I don't want to do that. I'm gonna upload arm subfiles witch only contain inlined primitives. No change of the length.