Plus doesn't your fix defeat the point of shields, which is better defense against missiles?
No as adding it to the armour helps out there. YES it does mean AP missiles and C attacks are bit OTT. Missiles we'll just have to live with. (although the benefits against enfidle fire probably even things out overall). AP melee is partly why I add 2 extra to the defence skill. It helps make 2-Handers without stat changes a littlie less OTT against Shield units (i.e. they suffer some losses), and deals with non-2-hander AP melee units being really OTT.

P.s. What I meant is that you don't need to modify unit stats much with the shield fix or add mass to units. It also brings into play some really important balance points. Namely anything that doesn’t kill a Shield unit on impact will get an automatic Shield Bash inflicted. This never kills as far as I can tell. However, it does knock them out of charge mode. So non-AP/cav units that are charging shield units find them very hard work, as does weak, (i.e, HA), cav. That’s a big change TBH.

I'm not trying to knock the effort you've put in of course, just that I think the Shield fix deals with so many issues at once that many of the other modifications you've already made simply aren’t needed, although I can understand you'd resent abandoning so much hard work. It's annoying me how much modding I’m having to do to get a working game TBH.