i have just invested in a GT2541EX tripod and a GH2780QR ball head, i am having trouble figuring how to use the ball head, it has a quick release mechanism that is supposed to secure the camera, on one side of the clamp the dovetail shaped molding is fixed, the other side has a small thumbscrew with the quick release handle underneath, it also pivots, trouble is it always pivots no matter what i try and the plate just falls out, i am sure there is a simple answer, i would really appreciate some help figuring this, i am not sure if i need another attachment, gitzo make a Arca-stule Quick Release Adapter A-B, would this help? i wan to attach a M1, the ball head is a little small, i am sure i will get something heavier one day, but it does carry 30lbs, any help would be most appreciated.