This is the only ball head that I have experience with--I prefer three-axis pan-tilt heads myself like my French Gitzo PL5.  However, this ball head appears to function as intended.

This ball head came to me by way of a tripod dolly that I won on eBay auction.  The dolly is something that I want, this tripod ball head, not so much.  I am starting the bidding out low, so As-Is.  So, good luck.  No camera plate included.