You were kind enough to phone conference with me years ago starting my mocha journey. It’s been fun, but wearing so many hats, I still haven’t perfected it. I’m struggling with a shot that starts focused on a desktop with a piece of the computer screen showing. Camera pans right to reveal the rest of the screen. My shape goes crazy during the “track backwards” process as the screen targets disappear out of frame 1 by 1. Is there a way to use a secondary spline as an additional reference or am I stuck hand adjusting the track once it goes crazy. Can you recommend tutorials that speak to either using a secondary/or hand adjusting the track?