I think I've made a somewhat interesting discovery. While cleaning up the algorithm issue Malevolence pointed out, Hardened Armor functions exactly the same if you ignore DV less than modified AV or not. This is possibly a statistical anomaly (indicating that the algorithm needs to be able to account for variable dice rolls, which is a pain I'm not prepared to deal with).
Thanks again to Malevolence for checking my numbers; always good to have someone peer review your work 
Normal AV vs Hardened AV, normal condition monitor: http://imgur.com/ZMjqjJ3
Normal AV vs Hardened AV, unified condition monitor: http://imgur.com/ZMjqjJ3
Thank you for your work on this. Very helpful. I just noticed that your links to both charts are the same (normal condition monitor). Would you mind posting your unified condition monitor image?
Thank you!
