It is still having AF problems under the basic one shot, center point focus so I haven't played with all other AF options yet. Every time I press the shutter button half way, the focus distance changes and the OOF pictures show this.
1st time - they confirmed AF inconsistency problems, did adjustments to the AF.
2nd time - they said it was in spec and still did electronic adjustment to AF.
3rd time - again they said it was in spec and still did electronic adjustment to AF.
4th time - again they said it was in spec and still did electronic adjustment to AF. On the note, they recommend to use AI Servo and high shutter speed. What the hell? They act like I have no idea what I am doing. The sample shots I sent them were static objects and camera was on a tripod when I took them.
Lead tech worked on it the 3rd and 4th time.
I know it's not me because my XSi focuses accurately and consistently under the same shooting conditions as the 7D. I am tired of sending it back and forth and having them keep saying nothing is wrong with it. It seems like all of the "electronic adjustments" they did didn't do squat. It's pretty frustrating that my 7D performs worse than my XSi. All of the 7D options do me no good when it can't AF properly.
Should I try to talk to someone in Canon customer relations? Or should I just file a report with the BBB? Or is there a better way to handle this? I just want to smash this camera right now.
Update:
It's great to say my issues with the 7D are resolved now.
Canon customer relations asked me to ship my camera to their engineering department for evaluation since the repair center couldn't fix it after 4 tries .
Today I received a brand new 7D from Canon customer relations and it seems to work flawlessly.
When I shipped my old 7D back to Canon, I had only shipped the body and kept the accessories just like when I sent it to the repair center. Customer relations sent me a full 7D kit with all of the accessories. And she told me I didn't have to send my old accessories back and just to keep them. So I now have 2 batteries, straps, cables, etc.. 


