Overall I like it. Two things though, I'd think about putting those admin buttons someplace else, maybe on the front of the control panel in the center, right under the lip so they're not being hit by a stray hip. Also, maybe move those two buttons above the trackball to either side so you have a left/right button for it. They seem a little close to the trackball for some overzealous Golden Tee.
Other than that, build a mock-up and see if you like it. Since you'll be playing it more than me, and probably anyone else here, it's your comfort with it that matters most.