Thanks for clearing, thanulee.
Typically I place the spline in a MoSpline to produce a new Spline (placing an extra Spline into it, and set the new vertices to a high number that allows for a better match. (e.g., 1000; Even)
Yes, I misunderstood, as the Helix in the file was not aligned nicely, and I saw that as the problem.
Here are two different versions of getting a Helix working for that.
Note that I needed in file …02.c4d a Point cache to overcome Priority problems.
All the best