Oetiker clamps work. In 250,000 miles, SpyderAnn has had 1 leak a tiny bit. Worm clamps can work loose.
welllllllllllllllllll that may be true …… but it's also true The Oetiker tool isn't in the tool kit.... which means you have to buy one ….. every other clamp I've seen operates with common tools ….. jmho …. Mike