Mills' Mess variant of the Boston Mess in which every catch from one hand is clawed. Eric's Extension, invented by Eric Uhrhane, is a variation on Mills Mess in which the arms cross twice on each side instead of just once. The extra throws may add to the visual appeal of the pattern. Eric's Extension requires the juggler's arms to be slender or flexible to cross two times, a requirement which makes this variation physically impossible for some. It is especially difficult with clubs. When combined with chops (a "chop" is a downward sweep or flourish of the hand that has just
Mills' Mess uncrossing arm movement, which is independent of the siteswap being performed. Any siteswap with any number of objects can, in theory, be done in Mills Mess. It is merely a distortion of the pattern's shape. The standard Mills Mess has the siteswap 3, but Mills Messes of 441, 531 (tower), 534 (four props) and many others have also been performed. The three ball 51 (the shower), , 414 (half box), 315, and 612 (see-saw), as well as the four prop 4 (columns or fountain), 534, 552, and the five prop cascade, 5, may have the Mills Mess shape distortion imposed