I have the same system and have a lot of problems with spinnaker over wrap. we tried the furler as a top down and found that the torque rope is way to light to handle top down furling. there is way to much twist in the rope by the time the top starts to wind up. it does work on the the A4 and A3 but not on the A2 it is to big
So you are using the AFX?
What model furler and size of sail?
Have not had problems like that - but both the tack and head spin freely (not touching anything)
But furling with to much pressure on the sheet can case uneven furling.
It's installed with torque rope supplied by Facnor.