Does anyone else have this problem? My right tricep is "cutting" quite nicely, popping out of my upper arm and forming a nice ridge on the back of my arm. My left tricep is almost non-existent...I can barely feel it popping at all. I work them both equally, but I am right-handed. I am going to try mental visualization, with a focus on my left arm, while I'm doing triceps from now on, and see if that helps. Anybody have any other suggestions?