Be a little bit gentle with the back brake and smooth on the clutch release while downshifting, on downhills when getting used to the bike. "Conscious" of what you are doing with rear traction while braking downhill would be more accurate. The V twin has a generous amount of engine braking effect, at least on the 2003 SV. It's not dangerous (unless you were hamfisted downhill on a poor traction surface), but it could possibly have a stronger off throttle slowing effect as you downshift than your other bike, so old downhill habits may or may not apply. It's something you'll get used to right away though. Figured it couldn't hurt to mention it.