I wanted to nerf Pale Master's and Tumble AC bonuses by applying armor class penalties when appropriate. But since it doesn't really look nice for PCs to have a permanent effect visible on the top of the screen and since I don't want to depend on NWNX, I thought about using the PC skin for this.
The skin item provides a deflection bonus, so I guess the penalty would be deflection as well, though I see I can choose another type. Generally AC bonuses of the same type do not stack, but what about penalties and bonuses? Let's say I have a helmet +5 to AC (deflection), while at the same type a -3 AC penalty on the skin. I see the following two options possible:
a) the PC gets a +5 bonus and a -3 penalty, so he gets +2 in total (this would be the desired behavior)
the penalty is assumed to be a bonus and is thus treated as such - meaning that a +5 bonus will override the -3 "bonus", resulting in +5 and neglecting the penalty altogether
How does it work?