UPS just delivered Mach1 chin, any install tips?

Still haven't got it on yet. Trying to find time to do things is kinda difficult.

4u2NV - when did you buy your piece and where. I know they stopped manufacturing these things for a while. Now that another company has picked-up the task, are they making them 1/4" longer on the sides so they fit flush all the way around? I got mine from 50-resto.