Hi Matt,
Have a look at this one minute clip:
https://www.amazon.com/clouddrive/share/JbOYZy5l0Yb7TaCuVYi4ErnwYdxEcxL0XprrEC00NNb
The Tracer produces by default for each frame one “point” in the spline, for each spline.
You can make it editable, preferable with a copy, and then use a MoSpline to recreate the Tracer.
If you like to have only a few frames, then use the Start or End as well as the Offset parameter to your liking.
Any change needed, Run the tracer again, edit the copy, replace the spline in the MoSpline and done.
Use the MoSpline in the project as it would have been the Tracer.
As it runs from start to end, the 0-100% of the MoSpline “End” parameter needs to be set up as linear, not spline nor step as key interpolation.
Scene file
https://www.amazon.com/clouddrive/share/0scGo5NJ1SCQpYXC6s2nlTrmePRRgfA0cX7ZQdJvaNj
Please note that I have placed a 0.001% into the offset; The precision for the End parameter increases tremendously.
I hope that works for your project.
All the best
