I used to think I could catch up to get into gun spinning competitions, practiced for hours and hours on end. As odd as it might seem, the birdshead and short barrel aren't best for this purpose - they're more center balanced, making it hard to get much of a whip and when they do spin, they spin really fast. A 5.5" New Vaquero or Colt clone is about right for balance, with a plowshare handle. Bisley's are a bear to spin, for me at least. 4 5/8" Single Sixes with Birdshead grips aren't too bad - but again, they're really fast. Speed can hide bobbles, but it also causes them, and it does take a bit away from the action when someone is watching, they just can't see what's happening quite fast enough to appreciate it (which can be nice in itself, because it can look like you're doing different tricks even when you're not simply by holding your arm differently.
Practice over the bed. Don't do it over a leather couch - hammer spurs can punch a hole - ask me how I know.