Page 61 - Joseph B. Healy "The Pocket Guide to Fishing Knots"

seem to be a way around it. The Orvis Knot is a really consistent knot,

and it’s so easy that it’s tough to tie it improperly. And it’s a really strong
knot and it’s clean. When he first saw it, Perk Perkins said, ‘Aw, that’s a
cool knot.’ He came up with a way to use the same knot to join two
pieces of tippet materials—the Orvis Tippet Knot.”