So with vehicle armor upgrades at 5 my base resistance is 10%. Now I go and add one and only one +15% resistance module and end up getting 23.5% resistance. Considering the note on the resistance module states "Stacking penalties apply to this module: the effectiveness of each additional module (After the first) that alters the same attributes will be reduced." why am I losing 1.5% off my first and only module?

So with vehicle armor upgrades at 5 my base resistance is 10%. Now I go and add one and only one +15% resistance module and end up getting 23.5% resistance. Considering the note on the resistance module states "Stacking penalties apply to this module: the effectiveness of each additional module (After the first) that alters the same attributes will be reduced." why am I losing 1.5% off my first and only module?

Multi-modules penalty:
1st mod: c(1) = 100,000% effectiveness
2nd mod: c(2) = 86,912% effect
3d mod: c(3) = 57,104% effect
4th mod: c(4) = 28,247% effect
5th mod: c(5) = 10,599% effect
6th mod: c(6) = 2,999% effect

these are the only stacking penalties that should exist. however, any module that affects your armour resistance (and not just of the same type) will create stacking penalties. so if you have a damage control (or the dust equivalent) then you'll catch a penalty.

It's not a stacking penalty, but it's like one, sorta. Basically the 15% reduction to damage is taken from the 90% damage potential left after skills. It ensures that there is no way to achieve 100% damage resistance.

That makes sense, in a well screw you over for investing in the skill kinda way.

That makes sense, in a we'll screw you over for investing in the skill kinda way.

Not really, it's just the way the maths works, if it wasn't for stacking penalties you would still get some crazy resists, the two together mean you can't stack resists to infinity or damage mods to ridiculous damage bonus's.

Considering I spent an excessive amount of SP for essentially .5% seeing as I am never going run with out some kind of resistance module. I'd say they screwed me over for investing in the skill.

Considering I spent an excessive amount of SP for essentially .5% seeing as I am never going run with out some kind of resistance module. I'd say they screwed me over for investing in the skill.

Considering I spent an excessive amount of SP for essentially .5% seeing as I am never going run with out some kind of resistance module. I'd say they screwed me over for investing in the skill.

It's worth it, if you ever run without a resist you will always have a 10% reduction, and on occasion that .5% can be a lifesaver. Btw I have both armour and shield upgrades to lv5, I don't regret it.

The thing is you're the one who did the spending. The problem isn't the bonus, it's the availability of information.

I think we can agree that an accurate understanding of what effects a skill has is part of people determining whether the SP cost is worth it for them. If someone doesn't feel that a 1.7% increase is worth the SP then that's their call. Partly this is the responsibility of the player, but when you combine 10% with 15% and end up with 23.5% it would be useful if an explanation at least existed in game.