I thought about this a lot when I first started wearing the kilt. I wore a baseball cap with my kilt because I thought a balmoral would look very out of place, especially on me(costume idea). After a while, I figured the kilt is so non traditional in the US that what the heck "if your gonna do it, do it all out".

So I dont think you can be too traditional.
Non traditional, maybe easyer to swallow for first time see'ers(think: Dropkick Murphy)?