I'm with Bill and Brian, love my 16T sprocket. The engine is happy at the 5,000 RPMs more or less I hold it at on my long rides. Getting ready to ride it to Fl in a couple weeks and no thoughts at all of changing the sprocket.I have a 19T hanging on my wall that I put on then took right back off again. Lost too much low end TQ. My SM will have it's 16T the rest of it's days.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!