wow is all I can say, they way I look at it, i'm wondering if it will work. There looks like there is a slight gap, the way i look at it, a good roots type canister is if you take a mechanical or electrical pencil sharpener apart, how the "blades" spiral like in roots super chargers. They have to be milled to like a .00001mm to work properly. Otherwise they won't work properly
cause its tiny all that tiny amount of air wouldn't be forced too well. just some of my 2 cents.