Just finished lowering my quattro sport 1.8T last week with the eibach prokit. Went in for an MOT yesterday, which ended up having the offside front CV boot being changed. It now drives with a 20 degree offset in the steering wheel, but tracks perfectly straight if hands off. I'm sure it was ok after I'd done the springs as I drove it 40 miles home and then to MOT, but it was dark.
I've been over everything I've touched three times and cannot find anything out of place, the ride height is the same both sides etc. Been through what the mot place has done also and can't see anything.