I haven't used this just yet, but I read a bit on the page that says;
"Be aware that a big equipment grid will be very overpowered with armor plating stacking."

I just wanted to offer up a thought. You could balance this out by decreasing the amount of armor added per module. If a second module is detected, make it only 50% as effective. Each module decreases in effectiveness. Essentially, only 3 modules would be useful. Maybe 4 tops.

Is this possible? (I'm installing the mod to try it out too. :P)

Hello,

Yes this should be possible to have a stacking penalty indeed. I'll see if I can get around implementing it sometimes.