I'm not sure if either will affect my ability to get this sound... it might be more guitar/action determined but I was hoping someone could help me figure it out...

A clip from this song here -> http://www.youtube.com/watch?v=1Wq298GywaM&fmt=18#t=0m58s

Just to illustrate the sort of sound that I want (I have a Martin 000cx1e acoustic/electric) and the guy playing that song has a Martin acoustic/electric as well and it sounds just like that live (http://www.youtube.com/watch?v=jatc0VV6hdw&fmt=34#t=1m23s).

I have been using 80/20 custom lights because they don't sell phosphor bronze at the local guitar store but I just went out of my way to get some elixir phosphor bronze custom lights and I'm about to put them on.