I think I'll just leave the trooper matte the way it is in the video I posted as using the pillar part of the matte would just make it too noticeable, this way you're only seeing the troopers peripherally, so it looks good IMO.

I'm still struggling with the crawl right now and man is it giving me headaches! I thought it was all done now only to find out it speeds up weirdly towards the end, so I'll have to re-time and re-render it again and it takes like 3 hrs to render that one shot because I'm using two 3D layers :-(