SIdeways is not a large factor if the tires are inflated the same.............within .5 pounds for sure. Also the alignment of the rear tires to be sure that they are pointing in the same correct direction. Swapping the rear can require a 4 wheel alignment.

After that the road surface affects the sideways approach due to crown or slope in the grade. Enjoy, Woody

Racers often connect both rears together with a hose to balance the pressures using a wyye hose to allow correct adjustment.......Weeee