What's your method of centering and laying the servo flat on a 12l4?
i just did this on my l4
got a tc3 servo mount, attached it to the drivers side of the servo, put servo tape on the servo and bolted the tc3 servo mount on.
to me it looks pretty dam centered, the first time i did it, i wasnt looking as i tighted the screw and i had twisted the servo. if i wasnt at work id take a pic for you