Hi Ivan, I'd probably recommend using "auto place" mode for Sweep combined with history. That will allow you to place the sweep profiles off flat on the Top world xy plane and so they're a lot easier to adjust. Auto-place mode is engaged for sweep if the sweep profiles are located outside of the rail's bounding box.

To set it up, you'd place 8 profiles in a left-to-right sequence, the exact spacing of them doesn't matter they will get distributed evenly along the rail. So something like this, using the Freeform type rotation:


Now after you have finished the sweep, you can select each profile and use the edit frame rotation control to quickly tweak each lobe until it has a better rotation, this is just after a couple minutes or so here:


- Michael