It was a couple reasons. First being that I really want to see if I can make it completely factory look by ditching the AMP connectors in favor of the BMW connectors --- Eliminating the need to drill any more holes or seal anything with silicone. Secondly, I was a bit hesitant to start poking the shield with a pick if I'm honest...it applies all the pressure to a point, but you need to bend the whole shield forward to get uniform results. Lastly.....there was 1/4 of a fingerprint on the projector lens at about 11 o'clock, needless to say the OCD was not happy about that one.