First thing I would check is the control surfaces. I can't tell from the photo but my guess would be your elevator control horn not pulling the whole elevator evenly when the wind is putting pressure on it. Causing an aileron effect. My second guess would be your rudder is hard for the servo to go left for two reasons, first the glue hinge is too full of glue causing the need for more force to be needed to move it. Second is the control rod, which I assume is 1mm music wire, flexing too much when being pushed.
To test these, power it up, take prop off first, and move the control surface and hold full defection and apply force with your finger in opposition to simulate the winds force. Do this in multiple places on the control surfaces to see if, 1, the surface warps, 2 the control rod bends excessively, 3, any thing else is moving wrong i.e. servo mount pulling away from board, it's happened to me.
The power pod is set up for ccw props ,when looking from the front, if I'm not mistaken. One other fun fact, props are neither pushers or pullers they are just air screws, pushers and pullers refer to motor/prop position relationship. Just be sure to keep the letters/numbers printed on the prop, pointed in the direction you what your plane to fly.
Hope any of this helps.
edit;
Oh and about props, counter rotating and normal direction, counter rotating would be clockwise when looking at the numbers like in this
flite test video.
edit2;
Okay, just re-read every thing twice. You refer spin direction from the drivers seat and I refer from when looking withe plane pointed at me, I am probably wrong in this semantics.
So if your running everything backwards, when your on power it would yaw crazy right then when power is cut you should have normal left and right yaw. If you are running a backwards setup the easiest fix would to get a new prop. In one of the videos I thought I heard that the wings are different lengths as well as down and to the right to help with the thrust angle.
I won't post up until we hear more from you.
I'm trying to help, but sometimes it comes off as a mad mans rambling,lol.