Looking to buy a Axis soon and have narrowed it down to a few. I currently have a Axis, Axis Hardtail, and a ASS Hardtail. Looking into a ASS with Piezo and a tremlo. Question, is the ASS with trem bidirectional? Also what is the KOA Axis? Appreciate any help. I am interested in a JP6 as well but think the pup selector switch will be in the way. Does any of the JP6 users have this problem?