Ok, I just came up with something strange while cleaning my 5, if I hold/lock off the steering servo, you can still move the steering a little, possibly more than it should with a little more ease than it should move around center.

So I pulled out the servo saver (very easy to do I must admit), and sure enough there is a bit of play in there before it hits the cams to restrict movement, during use a little fuel/oil has gotten in there making it maybe a little slicker than when first built.

But I have to ask if it's normal?, with the car in one piece I suggest just lock the top of the saver post with your fingers, and try moving your steering wheels side to side, maybe I'm just being new kit paranoid?.