I've heard that centering the steering wheel after adjusting the toe is "critical" on cars with electrically-assisted steering. The reason given was, 'because sensors'.
Can anyone confirm/refute this? If it is true, what sort of precision is required?
 What bad thing would result from mis-alignment of the steering wheel? In particular, would the EPS be providing unwanted 'assist' when driving straight, acting to get the steering wheel centered?