Right side or left side controls?
First of all the ball head body rotates on the panoramic base and the knobs rotate with the ballhead body. Secondly in a similar way to how the slot is used in a conventional ballhead the front of the Ultimate Ballhead acts as a very wide slot. The ballhead is rotated (on the panoramic base), to position this “slot” where desired to provide additional camera movements. Most photographers prefer our left side control ballheads. This allows the right hand to stay on the camera and the left hand to tighten the ballhead. When shooting you can rotate the ballhead so the main adjustment knob points either to the front of back instead or left or right and this can be done with both the right or left sided models. Some customers have traded in their right side ballheads for lefts. So far nobody has traded their left for a right.