I've noticed that the volt meter on my 09 SG seems to always read around +16 when I'm on the road.
Is this something I should be concerned about? Is is this pretty 'standard'?
That's way out of spec. Mine runs 13.2V almost without variance and I would expect 13-14.5V as the norm when the engine is turning 1500 rpm or more. The first thing I would do is do a check at the battery while the bike is running at 2k rpm using a known-good voltmeter. If that shows 16V I would check the VR next. If it shows normal voltage while the bike's gauge shows higher, the latter would be suspect.
Them gauges ain't always the most accurate beasts, I'd check with the volt meter as previously stated.
+++11111 this guy has it right !!! Mine has read this from the day it was new ... I went to a cycle electric regulator and it still read the same.. Checked it when it was running and read between 14 and 15 so all is good....