If anyone uses an Arca Swiss-style clamp, I can heartily recommend purchasing a Really Right Stuff plate for the P67. Mine just came in and it is GREAT! Not only does it have a pin for proper alignment in the accessory hole in the bottom of the camera, but the plate also has two "wings" coming up that really hugs the contour of the body. There is also the safety stop to keep the camera from sliding forward out of the clamp even if the clamp is not tightened securely. Not inexpensive, but like tripods and heads, you get what you pay for!