Nathan and Greg in the service department are great. They took care of my VSTROM for a couple years, but I've only taken Connie there twice. I've since grown a pair, and started doing my own maintenance. First time was for 600 mile maintenance, and second time to slap some new tires on. Since your in my area, I just picked up one of those harbor freight tire changing rigs and mojo lever, so feel free to hit me up when its time.
Only thing I hate about Manassas Kawi is the steep $95 an hour labour charge. But guess they gotta eat too. Often they give me the "family" discount, which i deeply appreciate. Like you, I'd probably have to take in for the venting issue, if I couldn't get a fix from this forum.
Cheers,
Will