After I published the 03_Tutorial I started playing around with the matte I created using a combination of the Avid Paint Effect and BCC 10's ChromaKey Studio. I wasn't happy with the edges of the mask. I also felt that there must be an easier way to create the mask with a single effect in the BCC repertoire. I was right and found it in the BCC 10 Make Alpha effect. Make Alpha solved two problems for me - first - it allowed my to isolate the sky more effectively and second - it has a built-in Mocha tracker that allowed me to further refine the isolation of the sky while providing me with the tracking data needed to drive the Match Move of the NightSky / Luna layer on V1.