I learned to fly inverted with a Jr. Ringmaster with a Fox 15X. After crashing and fixing it about 10 times, I put my thumb on the top of the handle. When the plane started getting to low, I pushed the panic button, the top of the handle with my thumb to outside loop to upright. I kept doing it over and over until I could do many laps inverted. So, I learned to fly with the handle vertical no matter where I am in the pattern. It feels very unnatural to me any other way.
I am left handed, but learned to fly right-handed. I do a lot of things with either hand.