i was thinking about and:

i think wushu would work so much better with the normal multiplier damage system
than damage threshold.

The damage threshold works out great for mods with 30tf such as lenshu3ng imo.

So my suggestion is: How about keeping the same normal damage system, but not giving points for certain areas:

I suggest:
-Hand= 0 damage
- Kicking to the feet, and shin= 0 damage

Any other ideas?