Hi Psygorn, so I think the twisting effect at the close point of the loft is caused from your rotation pattern not ending at a full 360 degree rotation at the end. I think your rotations add up to a final 180 degree rotation at the end so the end does not return to by synched up with the start.

I count 20 stations, and you have a rotation of 45 degrees for each station.

45 x 20 = 900 degrees.

900 degrees / 360 = 2.5

So the problem there is that it's spinning 2 and a half full rotations from the start to the end. The half part is what is the problem, you need the full rotation to be some even multiple of 360 degrees for it to make a non twisted result where the start and end meet up.

- Michael