Can someone explain what is be communicated by : (1) 10, 8-11, 5m 8/9 floating head, 27-29 gram; and (2) 11, 2-12 m 9/10 floating head = 0,30 m, sinking head = 32-34 grams. I realize that the first is calling for an 8/9 floating shooting head of 27-29 grams, but don’t have a clue what the remainder means. I noticed from the Loop site and the Vision site that it may have something to do with length of the head for various densities. Thanks for the help.