For those of you who have sent in your 5D Mark IV for the C-log upgrade, how did you go about packaging it, and which mail carrier did you send it through? Also, I'm thinking about sending in my lenses with my camera as well as my 85mm 1.2 L II has some bad focus issues and needs calibration so I figure I'd send in my other 2 lenses as well so that they can all be calibrated to my camera and everything done at the same time. Does anyone have any idea of the cost for the calibration of lenses to the camera? I am a CPS member silver but have enough points to upgrade to the highest CPS status if need be. if this is something that will cost me more than $100, I may as well upgrade to gold as I believe it's free for 3 lenses to be calibrated, correct? so it would in that essence pay for itself.