If you respect your company/boss, and have been treated fairly, take it easy. If you feel the opposite, go for the kill. How you react can affect your long term.
Watch out for the BFG kd's, the last set I put on the CTS-V only made it about 50 miles before they needed replaced.
http://i255.photobucket.com/albums/hh152/evil8/BlackCaddy.jpg?t=1202273335
Forget about z ohh 6 and the variations thereof. I tryed to get those for mine and they were all gone. Plug em all into oplates.com to see if they are available. There are also some restrictions on where you put the numbers in the plate. I don't think you can get numbers in the middle.