Ok, I am looking at buying either a VY Calais cluster for my VY Acclaim / SS / Calais / VZ lmao

Whats the go? I have heard something about "blue" and "grey" sockets at the back, which is for which series? I.e. Blue - Series 1, Grey - Series 2, or is it the other way around?
And does anybody know how much GMRipoffHolden charges to recalibrate a new cluster?

Hmmm ... anychance of rewinding the odo a little?