Question is is it better to align with or without the tires on? I used similar DIY method as noted on the forum, only difference is I used 1 inch angle iron and not 1 inch square aluminum. I did not do it yet with the tires off, but did it with the tires on. Got it within 1/8 inch and drove it. Anyway, whats better, tires/no tires?? any difference?? thanks