UUC Stage 2 clutch FW question

So I just installed a UUC stage 2 clutch and flywheel, And everything went as swimmingly as it could. Knocked it out in about 8 hours.

I know gear chatter is "normal", but mine seems to be shuttering between 1,500-2,500 RPM. It shutters the whole car! In any gear or in neutral.

I followed the install instructions, including the torque process on the flywheel it self.

SO is there a special way that the clutch bolts to the flywheel (aside from the obvious). Is this a brake in thing? Did i screw it up? Or is this normal, and I'm just going to have to deal with it? I'm going to call UUC on Monday and talk to them. Ill post a video if I need to.