I would definitely recommend micro adjust, but also keep in mind that shutter speed and aperture also play a very significant role.
I have several lenses that I can shoot wide open and get tack sharp results, but I also have some that I need to shoot at a smaller aperture to get the same crisp results.
I also shoot at faster shutter speeds then most. The old saying is shoot at a shutter speed that is at least as fast as the reciprocal of your focal length. I.E if you are shooting 200 mm.... shoot at 1/200 or faster. I tend to shoot at speeds even faster then the reciprocal of my focal length and the percentage of tack sharp keepers went way up as well.
You can adjust the MA easily on your own for free or you can invest in some software. I used to go down to the lake and get really low to the water and shoot moorings with the aperture wide open. It is easy to see the line of focus against the water and this will roughly calibrate your MA. Its not foolproof, but free.
I now use FoCal software. It takes all the complications out of lens calibration and works like a charm. It is the best calibration tool out there and at a fraction of the cost of Lens Align... (Which I don't recommend. It is very difficult to use and takes FOREVER, IMO)