I recently upgraded to H&R springs and SVT struts. I took it to an alignment shop afterwards and the print out showed that both front and rear toes needed adjustment. This is expected since the ride height dropped over an inch F&R. FYI, both fronts and rears needed more toe out as drop in height creates toe-in conditions. Suspension geometry for safe handling.
So your alignment indeed is off spec and can cause the vibration problem - excessive off-toes spec can cause cupping of the tread which will cause vibration and wasted tire.
