Making Sand Shield usefull

I think that sand shield should be sorta like rotations in the sense that you take 0 damage to your hp.
The way the new shield the user would lose chakra based on the damage dealt to it. The amount of chakra lost would be like 1:1 ratio and a skill tree can be changed to reduce the ratio to like 1:2, 1:3, 1:4.
Sands have tap sand reserve so they arent fucked if they run outta chakra.
Some of the other skill tree passives could make it so you can use it during a stun if you dont have sand armor on.

I like this idea, I've always wanted sand shield to be useful for something more than killing clones.