Hidden aileron input hard right roll

[Firebugs]

Unfortunately I did a cleanup that wiped my screenshots and track files.  I will spend some time to try to replicate this and post a track file. 

 

What happens to me occasionally is a baked in hard right roll. At first I thought it was a stall related to carrier take off, but it even happens with very light overall weight, and follow the same procedure with the same loadout back to back produces a very easy takeoff at the same indicated air speed. 

 

The thing that solidified this for me was an instant action free flight in which I immediately rolled right upon start.  The stick was visually centered, the ailerons were visually centered on the wing, the trim was centered but the plane was rolling hard right.  Eventually I was able to trim it out using about 80-90% of my left aileron trim.

 

Again, I'll try to provide a track file if/when this happens next. I had some but they got wiped.  In talking to a few others they have experienced this also.