riprop,
I've got a 17m Contra that turns hard right. Once it hits 15mph and I'm tacking right I can only cruise with both hands on the left side of the bar, otherwise it's a left arm workout
I tried to pinch in and pleat the same side of the canopy that it was pulling to and that didn't work. I did not have the time to try the other side as I needed to get out and kite!!!! Next time I am going to try the same pleat on the opposite side that it is pulling towards. I did this with simple duct tape. I used about 5 strips each about 1/2 inch and it lasted well into my lit session, so believe it or not you can duct tape your trailing edge of the canopy nicely and it will hold for a session most likely. Once I figure out my solution I will post the results...here is the other thread:
viewtopic.php?f=1&t=2394818