I don't think I'm ever going to get this bike back.
I just got off the phone with the mechanic. His story has changed once again! Now it seems the bike doesn't run, and hasn't run since I rode it into the shop in August. He's blaming the camshafts that GSXRRacer sold me, saying that they don't work in the motor and are causing low compression.
Since those are GK73a cams, I find that to be highly unlikely. More likely is that he bent the valves while adjusting them, and now they aren't closing all the way. Anyway, he went on and on about how I've 'ruined' my bike, and I've pretty much freaking had it with the entire thing and this asshole who I previously thought was a great guy. Needless to say I won't be directing people to him anymore.