In what seems to be a very disturbing trend of me dropping my gear on the concrete, my tripod hit the pavement tonight (it was a 5D2 & 17-40 last month). I was using an Induro AT213 tripod with the BHL1 ball head.
I had just taken off the camera and folded up the tripod. I had a Think Tank Retrospective on one shoulder and a camera hanging on the other shoulder. I laid the tripod across the top of the camera bag then raised up the camera to make a quick adjustment. The tripod fell when I did this and dropped about 3 1/2 feet to the ground. It hit head first with impact on one corner and on the locking knob. The pressure on the locking knob pushed it downward and broke a piece off from the bottom of the head.
Surely this is defective manufacturing and not user error, right? That's what I'm telling Induro anyway. We'll see how that goes!