How important are audio leaks for your clan? I would think they are very beneficial when you are pking in P2P. Not like I would know but hitting a clan on log in can be extremely demoralizing. Clans often use them as propaganda but I think for the sake of pking they are extremely useful.
On locations, we usually fight in the wilderness but I noticed pures fight in different locations in PvP worlds which I found quite interesting. I saw a video in which Unbreakable fought in Al Karid, and then also near Castle Wars. I do not think mains will ever fight beyond the wilderness due I think the pures do a great job in spicing up by fighting different styles and locations.