I unclip with the right, but I've taught dance for years so here is a different slant. I've always done left cartwheels, preferred to high kick with the left leg, yet I'm right handed. All of the others in my classes growing up did them right, so of course I had to conform...When my dance girls tumble, there is usually a couple that want to do their cartwheels left. About 2 out of every 10, and they are right handed, so I guess some of us are just right-handed and left-legged.