Chops Duster! - Fingerbuster!

A "fingerbuster" could be considered as an instrumentalist's version of a "tongue-twister" which is usually defined as a group of words, or a phrase, that is considered to be difficult to execute.
While the degree of difficulty varies with both the phrase and the ability of the practitioner, constant repetition, in any case, at a slowed down tempo, usually serves to iron undo the knots before gradually bringing it back up to speed.
This particular "finger-twister" appeared out of the blue recently while I was doing my saxophonistic due diligence, and it gave me "the finger".