APD, I have a 2007 GoldWing, and sold my 2007 RoadGlide when I purchased he XC. I also have a 2007 Dyna, so I think I understand your question.
The XC will never be as smooth as a Wing. V twins are not 6s.
Compared to my Harleys, the Xc does vibrate a bit more, but for me, not an issue. Only you can can decide if it's an issue.
However, the suspension on the XC far exceeds the Harley, and is, again in my opinion, better than the Wing.
Multiple Bike Disorder:crzy:
2011 Cross Country:D
2006 Suzuki Burgman 650
2007 Harley Dyna
1976 BMW R75/5
1971 BSA Lightning
1947 Harley 45