I tried several pan/tilt heads, including two different ball heads. I am very satisfied with the Artcise XB-54. Solid precision workshop. Only one main knob, fine adjustment is not required as the main ball lock knob is perfect. Although not grade marked, the top plate also rotates for ease of use. I feel 100% confident leaving my rig unattended and not worried about a creep. Amazing value and 1/6 the cost of RRS. You can't go wrong when you need a powerful workhorse.