Tracking in Mocha with Mary Poplin

So for my green screen project, I have a few shots where I need to use tracking in order to sell the effect that I am trying to pull off. But for some reason I've been getting very strange results when I track in Mocha. Some of the tracking ends up looking a bit jittery, which wont translate very well when trying to pull of my visual effects.

I've recently been watching videos about using mocha and how to get the best results with difficult shots. I've found that if you want to learn more about mocha tracking, a good resource is from someone who actually works for Imagineers Systems (creators of mocha): Mary Poplin.

Mary is a pro VFX artist/tracker/roto painter. I've watched 2 videos so far where she goes through how to get a good track in Mocha to get good clean results in order to roto paint onto a clip of a couple short films. I found her through the Film Riot community because she has worked with them on 2 short films both of which involve rotoscoping and painting things out of shots by using Mocha. She does go through the shots pretty quickly in her tutorials, but You can still learn a lot from her.

So now I'm going to see how I can use what I learned from her and apply it to my tracking in my green screen project and see if I can get any better results then before.

If you want to check 2 of her videos, they post right below: