MKIII and MKII N lens calibration

After reading through several post about some people calibrating there lenses to the MKIII i decided to see if there was any difference between my two cameras and lenses.
After setting up a tripod and doing some tests between the MKIII and MKII N i have found that with no calibration adjustment to the MKIII i get the same results as the MKII N. None of my lenses have been sent to Canon in the past for calibration and give the same results on both bodies.
Has anyone else carried out a comparison between both cameras on single shot and what have been your results out of intrest as i seem to remember reading some post where people have found that they have needed to calibrate there MKIII compared to there original cameras.

Have you tried to calibrate the Mark III with one of your lenses to see if you can improve on the sharpness? I calibrated my Mark III for the lenses I use the most and none required any microadjustment to improve the image. However, I should add that my other cameras and lenses were all sent to Canon for calibration a year ago so I'm not surprised that my Mark III needed no microadjustment.

Did try a couple of clicks either way but just seemed to make the image softer so have now left alone.

Glenn, Its all good so far with your M3, I worry about the lens calibration on my 2 lenses. I've booked my lens calibration this weekend What method did you use to test the calibration?

Cheers

Tried a couple of ways with each lens first one was similar to Pekkas method but instead of using a memory card as it was with the 300 f2.8 i used a cigarette packet and a ruler set up at an angle to the camera so i could focus on the packet and view the amount the focus shift against the writing on the packet and ruler scale from a couple of different distances the furthest being the length of my garden.Fired of 10 exposures in one shot at f2.8 and between each exposure moved the focus ring to infinity so as to let the lens A/F focus each shot then checked a 100% crop of the first,fifth and tenth image for sharpness then repeated the above again at +2 and -2 settings.
Once i had checked and found that the zero setting seemed to be the best for sharpness i then repeated again but instead of shifting the focus to infinity i just took each shot and listened for any obvious signs of the A/F motors moving while still focused on the same point but make sure your tripod is weighted down with something because the first couple of times i moved it very slightly while depressing the shutter button and had to start again lol.
Carried out a similar test for the 70-200 but with a pen lid and ruler at a closer distance but worked just as well.