Questions on recent alignment

Just because something is new doesn't mean it is perfect. The tightness (torque ) of each suspension part can be uneven. A tight ball joint or tie rod end. As mentioned before , the ride height has a large affect on the alignment. This is why the tires need to be the same size, brand and model (actual tire dimensions are not the same between brands). The rims must also be matching side to side.(offset, width ) and the air pressure must be set to vehicle specs. Older, pre-radial tire cars will use more. To make sure that you are not preloading the suspension parts unevenly, side to side, You do not do final tightening of the suspension parts until they are all installed. The wheels and tie rods are centered. Jack the front end up in the center with a hydraulic jack, make sure that your suspension parts are just snug. Lower the car all the way down and jounce the suspension a few times to settle. Now final tighten (or torque with a torque wrench if you have the specs). Now every thing should be as neutral as you can get it before your final alignment. Just for giggles, before you do anything else, either rotate your tires front to back ( if all 4 are the same of course) or just the fronts, side to side and test drive. Even new tires do not always track straight down the road. And to just be on the same page, does your car drift to one side or pull to one side. They are not the same.