Garry,
Completely agree on the returning to standard bit, that's why I stopped where I did with mine. Just referring to the 'ideal' three way locations.
I am going to spend some time setting mine up again over the next few weeks. Round one was good but it can be better.
Mine is an 04 car, and the bottom of my fascia does curve ever so slightly. I don't think they are different between any MY - if there are then it migth be an idea to have a word with Autoleads.....