Fill transition after zoomin

I'm working on a video from a game I play, Eve Online. The other day my group got a fight, and we managed to get it recorded from 2 different perspectives. Right now I have 3 video tracks as you can see in this image: http://imgur.com/f1URY. Here is a quick, unprofessional clip of what I have so far, and what I am attempting to do:



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Basically, when the PIP screen (track 1) zooms in on that area, I want the PIP to fill the screen before it begins to zoom out again. After that point I have swapped tracks 1 and 2.

I've already posted it in the original post. Track 1 is the "Blue" PIP Window (containing the 'pan' effect to create the PIP), track 2 is the "Grey" screen, and track 3 contains the 'zoom out' that marks the transition between the swap.

I managed to work it out.