On the how-to at mustangworld, it talks about taking pictures of your needles while the car is runnning in order to re-calibrate them after the installation. however for their faces, the needles were removed and replaced. I am installing an overlay, so I don't have to remove the needles. However I've read that I should move the needles around to make it easier to lay the overlay into places. Wouldn't that be the same as taking them off completely, so I have to fix them all after they're reinstalled?