Thanks for your question. This may be possible using a conditional operator to limit the Evenly segments so that it only appears once per spline. The other evenly division would still exist but a null segment is used instead of the actual geometry.
To do this, wire a Conditional operator between the Evenly segment and the generator and set the its properties to X Counter Equals 1
. Wire a new segment with no geometry to the false input.
To control the spacing so that it measures exactly from the beginning of the spline, turn off Justify
found in Generator > Properties > Rules > Evenly
Please see the attached file for an example.
I hope that helps,please let me know if you have further questions.