Whats the longest fall you took wearing a Swami Belt?

Chouinard showed up with his new aluminum carabiners and a supply of hand-forged chrome-moly pitons and a tale he was reluctant to tell except that it had an important moral. Up until that time we all used the time-honored method of tying into the rope by wrapping it once around the waist and securing it with a bowline knot. Yvon, ever on the prowl for improvements, decided to wrap and tie a ten-foot piece of one-inch webbing around his waist and tie the rope into that. There were several advantages. The leader would have a few more feet of rope at his disposal to make it to that comfy belay ledge (in this regard, it was also around this time that we started to use ropes longer than the conventional 120 feet, eventually settling on 150 foot ropes; harder climbs meant fewer ledges farther apart). It was also nice to know that should you need it, you had an extra ten feet of webbing, twenty counting your partner's, that could be used for rappel anchors or slings. Most important, in the case of a fall, the webbing would distribute the force over a considerably greater surface area than a 7/16-inch rope. It was this advantage that Yvon's tale illustrated. He had been climbing in the Tetons with Kamps, and they were attempting a new route on a spire called the Crooked Thumb. The upper half of the north face is generally overhanging, a feature that made it attractive to Yvon and Bob.