Alternative armor system.

So I made an armor system based on how I didn't really like how FNFF or SNSD delt with blunt force trauma(your BTM couldn't reduce damage to 0) So hears a kick at it.

AT/PT Armor:

Stopping Power is broken down into an Absolute Threshold and a Partial Threshold AT/PT for short; to get your AT/PT, half your SP and round up to get your AT and the remainder is your PT (13SP = 7AT/6PT). Your Absolute Threshold is capable of stopping all in coming damage but your Partial Threshold is only capable of stopping 1/2 rounded down of all incoming damage. An example of this armor system being used would that your armor has 13 AT and you take 17 damage, your Absolute threshold stops 7 points of the incoming damage with 10 points remaining, your Partial Threshold could potentially stop 6 points of damage but can only stop 5 points of the 10 points of damage, the remaining 5 points of damage would be reduced by your BTM, and finely the remainder would be taken as wounds.

Note: I've haven't played much and have just read the books a lot so feal free to explain why this concept is overcomplicated junk.