I had wanted a RG since 2004, but waited to pull the trigger because the lack of aftermarket parts during those years. I had two SG's from then until last September, One was an 2004 Electro standard I made into a SG (before they came out with one in 2006) and the other was a replacement when I got ran off the road in 2007 (2007 SG). I finally got the bug bad in 2009 when the SERG's came out, but I'm glad I waited until 2010 for the Custom. It's more up my alley of what I wanted and what I wanted to do with the bike. Buffetting seems to be subjective to a point, depending on height and what shield your running. Sancho Wings and windvests are a great options if you want more control or the air.
The only thing I can say is be prepared to replace the headpipe if you get a new one. The EPA standard with the Cat in the headpipe has really made these things hot.
Pull the trigger, you may have to work on it, just like any other bike to get it the way you want it, but there is no mistake in choosing a RG.