I think everybody's level of vibration differs......

The best way is to compare with other bikes...

On the weekend I was swapping over with my chum on his KTM990 2007
and upto 80Mph the Ten is far far smoother with less noticeable vibes.

Ofcourse if reving the bike past 5K then vibes become more of an issue.

My 09 XT is just so smooth........

The XT is a far more relaxing machine to ride than the KTM if you riding B roads or not in a rush.....

just my 5p worth!