I was building a Herns Demon for OTS. It has leadouts coming out over the wing. Got it built and was making the fuel tank, which slides in from the front. Realized that something was wrong as I was building the fuel tank upside down. Then I saw that I had built the airplane to fly clockwise.
Too late to make a change. I had learned to fly going clockwise, then switched over to flying counterclockwise, with the handle upside down, for many years. So decided to relearn old tricks. I have now been through two contests and flown between 50 -100 flights. I am almost as comfortable as with flying ccw. I think with a few more flights, it will be about the same either way for me.
It has been very challenging and interesting to do, however the airplane I am building now will go ccw, unless I make a mistake. If you are getting bored with flying, I recommend learning to go the other direction to put some spice back in. I am looking to be, like George Aldrich, equally adept flying either way.