Vibration in the seat

[HOKIEMonster]

I have an 07 695 with the DP ecu, termi low mount exhaust and the open air box. 

I've just had the cylinder heads, valve covers, and cam shaft covers replaced under warranty (the paint was melting off due to heat).  Yesterday was the first time in over two months that I've had a chance to get out and ride for an extended period of time, and at highway speed.  It may just be that I've forgotten what the bike feels like having not ridden in so long, however, it seems like there is a lot of vibration in the seat when running around 65-75 mph.  Any chance something could have been knocked out of balance when in the shop? 

[hypurone]

That's a tough one to answer as you know the bike better than anyone. but as a thought, is there another one (a friend's, at the dealer) that you can ride to compare?