How to obtain subrange of ovoid

[Peter Blomberg]

1 16 -29.3636 0 95.0925 74 0 0 0 1 0 0 0 -85 48\1-8edge.dat

Considering the above curve, it starts from right and proceeds clockwise 6 out of 48 segments. The x and z radiuses are different.
How do I obtain a curve with segments 2 to 6, i.e. without segment 1?

Rotating the above by one 16th rotates also the ovoid, not just the "selection".

[Rene Rechthaler]

i could imagine two ways:
-place a R1 5-48 prim, rotate it by 7.5deg (360/48), then scale it
-inline the 1-6 prim and delete one segment
both have their disadvantages:
-the rotated+scaled prim will have a strange rotation matrix and strange connection points
-inlining loses all prim links and properties