When I put $3,000 worth of rims and tires on my Premancy, they said the alignment was good. Later went back, they said no alignment was needed. I could tell even on new tread that it was GOING TO wear on the inside.
I know not everyone has the use of a million dollar auto hobby shop at their disposal, but when I change the oil I rotate my tires just to balance out the tread a bit, in the next few weeks Im going to get the tires 'true rotated' i.e. take the tire off the rim and swap left to right, for now all I can do is move front right to back left, etc.
We all know there is NO camber adjustment on the 5, so if that is your problem, do what I do, rotate every oil change, then once a year tire off the rim rotate.
If it is pulling left or right, YES that needs an alignment.
Peace!(rei)