A priori it seems solid foot. His head is beautifully soft in movement and very effective. As against the clamping knobs of various sections of the foot are very fragile. They have a rotational stop to limit the clamping abutment of the sections. One of mine took off. Suddenly I found myself wobbly ... A design review would be more effort than necessary: the tightening is a vital element for the stability of the foot ...! Too bad because everything exudes strength ...