Price for DR that applies to injury (penetrating damage) instead of damage?

[Raekai]

Hey, all! Long time no see.

I'm looking for a limitation (or a fair price for said limitation) on Damage Resistance that makes it apply to injury (penetrating damage)—so, after damage multipliers and such. I could've sworn that I'd seen something like this before, but a search wasn't turning up any results.

If you want to know why...

Spoiler:  

it's because I'm still obsessed with logarithmic ST and alternate takes on damage/HP (like "Conditional Injury" from Pyramid #3/120.) My thought was you could get a basic piece of that idea (in any game that uses HP, really) by having something like Damage Resistance (All or Nothing, -10%; Only for Penetrating Damage, -X%) equal to 1/10-ish a creature's HP. I was thinking of calling it Damage Threshold (DT) or something. Anyway, it would mean a creature has to be hit with a minimum amount of (penetrating) damage to be injured and the whole injury would go through (because of the All or Nothing limitation). This seems to kind of replicate the effect of having Severity -7 Wounds in Conditional Injury.

Thanks!

[Christopher R. Rice]

I noodled on this a while ago. See here.

[Raekai]

Originally Posted by Christopher R. Rice

I noodled on this a while ago. See here.

Of course you did! And I even searched your blog too. However, I'm surprised that you valued it at 10 points/level. I'm admittedly a little GURPS-rusty, but I'm surprised that it would be worth more than Damage Resistance. The only advantage it seems to have (to me) over Damage Resistance is that it is calculated at the end, which means (as you said) that it helps with Injury Tolerance. Of course, the main drawback is that IR is less effective against cutting, impaling, etc. Does that one benefit outweigh that drawback so much that it would effectively be a +100% enhancement on DR?

[Plane]

Originally Posted by Christopher R. Rice

I noodled on this a while ago. See here.

how does the level-based cost that accrues for the Wounding Resistance enhancement on Injury Resistance work?

Like for example +20% on the first 10pt level costs 2 points

+20% on 2 levels of IR would cost you 4 points: what do the extra 2 points pay for?

If the change in wounding multipliers only applied to damage subtracted from the injury tolerance then I could understand, but it sounds like it also helps reduce spillover, which seems like it would have geometric effects similar to Powers "Injury Tolerance Damage Reduction"

[Christopher R. Rice]

Originally Posted by Raekai

Of course you did! And I even searched your blog too. However, I'm surprised that you valued it at 10 points/level. I'm admittedly a little GURPS-rusty, but I'm surprised that it would be worth more than Damage Resistance. The only advantage it seems to have (to me) over Damage Resistance is that it is calculated at the end, which means (as you said) that it helps with Injury Tolerance. Of course, the main drawback is that IR is less effective against cutting, impaling, etc. Does that one benefit outweigh that drawback so much that it would effectively be a +100% enhancement on DR?

We just used Vitality Reserve as a guideline. It's all in the post. Worked fairly well in my supers campaign.

[Anaraxes]

Originally Posted by Christopher R. Rice

I noodled on this a while ago.

Why do you put Vitality Reserve before reducing the penetrating damage by Injury Resistance? VR is supposed to be D&D / video game hitpoints, as I understand it -- just a way to soak damage without having more "real" HP. To me, the most natural sequence would be:

1. Basic Damage - DR => Penetrating Damage
2. Penetrating Damage x Wound Multiplier => Injury
3. Injury - Injury Resistance => "Penetrating Injury"
4. Penetrating Injury - Vitality Reserve => "Effective Injury"
5. HP - Effective Injury => HP

instead of the blog version, which has steps 3 and 4 swapped. We're making up mechanics, so it could be defined either way, but what's the rationale for VR not being protected by IR?

(And no, I don't think we really need names for every step. They're hopefully adding just clarity to my question along at the price of adding clutter. It's often been handy on the forum to answer questions about exactly how the damage gets calculated in GURPS, even though people rarely use those terms of art precisely once they know how it works.)