I guess the thing I wasn't aware of was that it only takes the highest mod you have on...I've just been debating if I should be dual wielding at all times at this point in the game, or if I should still swap out instruments (wind for mez) etc. I've been going back and forth on the subject.
Sounds like I just need to go through and put some hard numbers to table:
Instrument Cap 4.2
Wind
Epic 1.5 (2.2)
Warped Steel Pants (2.3)
Stained Mino Panpipes (2.3)
+
Instrument Mastery (0.8)
Conclusion: Don't swap out wind at this time, as Pants + Instrument Mastery = 3.1
Brass
Epic 1.5 (2.2)
Warped Steel Helm(2.5)
Sabertooth Horn (3.2)
+
Instrument Mastery (0.8)
Question: Is it worth swapping out to the brass to get a 4.0 over the 3.3 or keep dual wield?
Percussion
Epic 1.5 (2.2)
Muramite Drums (3.0)
+
Instrument Mastery (0.8)
Conclusion: I think its only worth swapping out if chant kiting or travel.
Strings
Epic 1.5 (2.2)
Warped Steel Arms(2.4)
Muramite Drums (3.3)
+
Instrument Mastery (0.8)
Conclusion: I think its only worth swapping out during downtime healing.
So from this it sounds like I can do away swapping out wind all together for mezzing, as pants take over this role. Not sure on brass yet, looking forward to your feedback...
So sounds like maybe 4 bandoliers then (melee, strings, brass, drums)
Melee: dual wield
Strings: healing
Brass: ?? haste
Drums: Chanting and Travel