I am currently set up octave, and must admit to being pleasantly surprised. I have always played unison on this instrument. One of the things that makes an Irish Bouzouki such a nice fit in the jigs/reels world is its punch. It isn't a "trad" instrument in this music. But one of the things that give Irish/Scottish music its feel is the way we play rhythms. They are a very strong part of the mix. I always shied away from the octave stringing, because I was afraid it would lose some of the drive, particularly in the reel sets. 6 months ago I strung up with octave strings, and found that my fears were unfounded. Not only that, but when I am playing melody lines, it is a great sound.

I would say you should experiment with both. Also experiment with the strings you put on the instrument. I used to really love nickel strings on this instrument.

All the best,

Mick