So, as I've stated elsewhere, I am not the biggest fan of the d100 system, but as a law student, I don't really have the time to homebrew a system my players and I would like better. So that leaves me with making house rules here and there to make the system "work."
Anyways, I came up with an idea for a house rule regarding toughness, and I thought I'd get feedback on it. As is, I really dislike how toughness works as "armour" and reduces the total damage taken. I don't think that really reflects what a "tough" character is. My houser use then would be to remove the toughness bonus from the damage calculation and instead use it to ignore the cumulative effect of wounds.
So a character would only start adding +5 to damage for wounds over their toughness bonus, while critical wounds would be unaffected. So for example, Avitus the Scribe has a Tb of 3, and so the first 3 wounds he suffered would not add +5 to his damage taken, but the 4th one would.
My immediate thoughts on this is that makes weapons more likely to cause an effect, as some of the damage is no longer being mitigated, but would still keep toughness important as it means your less likely to suffer system shock (which is how kind of I interpret the cumulative wound effects).
What I'm looking for is problems that this might cause in the system that I haven't thought about yet. Any feedback though, is very welcome. Thanks in advance!