Welcome to the 'Bolt. Exhaust tone is a matter of personal preference but in my opinion a single Smithy on a full length exhaust will sound fine. I run a short glasspack type muffler with a turn down a foot or so off the back of the muffler on my Loadmaster and it sounds good. I was afraid it would be too loud since it's always "to the floor" but it's not. I'm sure you'll get more comments soon,
Scott