I'm a lefty as well! I still wear my sgian dubh on my right side though as a matter of tradition, not like I'm likely to need to draw the thing overly fast anyway.

Lefties generally have a greater propensity for being somewhat ambidextrous in that we live in a right handed world. If you think of how many things are set up that way it makes a lot of sense. I can do a lot of things right handed, but do them better left handed. I'm also a drummer, so that helps me in particular.

I don't have good vision out of my left eye though, so I shoot right-handed and oddly enough I'm a right handed shot in hockey, can't shoot left handed to save my life for some reason.