Hey Tim, if you are looking for ideas for future Libran Novus PDFs how about these two?
1) Instead of a static number that armor reduces damage by how about a random amount in the form of dice? If you want to stay with D10s you could do something like:
1D10
1D10 -5 (1 min)
2D10
1D10+5
etc.
2) Going another way altogether how about getting rid of the armor protection altogether and just adding an amount to Def?
Thoughts?
If you are going to put them in a PDF, maybe don't elaborate on them too much here.