I have noticed a number of cues described as a "Hoppe style"... or having a "Hoppe ring"... As a 3-Cushion player I admire the great Willie Hoppe. But I was not aware of his influence on cue design (if that is in fact the Hoppe referred to.) can someone describe what makes a cue a Hoppe... perhaps with some pictures? And a little background on how the reference came about would be much appreciated. Thanks.