Great tutorial! I actually got 4 cans of Plastidip myself last week. I started with the grilles and finishing rods on my E90. After a few trials where I learned from the same mistakes as you (holding the spray too close, drips, etc), I got it figured out and it came out super smooth and looking good.
I am going to try and tackle the trim this weekend. I just need to block off some time to actually get it done. To others reading this, I can't recommend the stuff enough. It is easy, straightforward and cheap.
2008 BMW 335i (E90) - Black on Black!
2010 Audi Q7 - Gray/Black