Starix used to use Kinzu v1 for a while, so he wouldn't have said that if he's referring to the Kinzu's hardware acceleration.
Anyway, Edward's mouse movement is a lot lot different from f0rest's. How he does 90's/180's/360's and how f0rest does it is very different. Just watch them.
Also, I've owned a Kinzu for 1.5 year myself and use the same 3.5 sensitivity, 2 noforce commands, and no acceleration. Believe me, I've tried various styles of gripping the mouse, styles of swiping the mouse, etc and I could never mimic Edward's mouse movement, I could only mimic f0rest's.
So, either Edward is using Windows acceleration or he doesn't install mouse driver like f0rest and I do.