The intent is to get copies as simple alignments with no intervals.
You may find some alternatives, such as Break Element instead of trimming.

Method 1

1. Partial offset of horizontal (spiralized, remove rule)
2. Copy vertical (Not Projected)
3. Transform vertical (shift horizontally using station)
4. Trim vertical alignment (Optional)
5. Remove intervals on vertical (Optional)

https://youtu.be/k-fWSWrtsi4

Method 2

1. Copy horizontal
2. Copy vertical
3. Trim horizontals
4. simplify horizontals
5. Adjust vertical
6. Trim verticals
7. Complex vertical then simplify
8. remove intervals on horizontal

https://youtu.be/Qkeg-UM9WjI