is there any rime or reason on how a off set cable guard is set, i got the book out and it dose not clearing explain, should the offset be cantered up [ie 12/ 3 oclock] or 3/ to 600 oclock . mine has always been at lets say 330, but at a site i was at today, it clearly states it should be cantered up on a single cam bow , whats every ones opinion please,