whats the deal with the low WU? I've just noticed that on mine and it seems that everywhere I look people's WU is nowhere close to their hash rate. All of my gpu miners have been around 95% WU to khash.
Is this an asic thing?
Here's my cgminer running 10 Gridseeds:
http://imgur.com/Lw7jEIKTruth be told I never learned exactly what WU meant...so if you're inclined to explain I'd appreciate it.

from my google searches before I posted this:
"cgminer WU is the Work Utility defined as the number of diff1 shares work / minute"
so pretty much what that means to me is it's the work submitted to the pool, the higher the better. The low WU numbers would seem like it's not submitting much completed work back to the pool unless I'm missing something...