Hot Rods have traditionally had "Big & Little" tire/wheel combos. Now I'm reading/hearing that mixing tire sizes or brands, (not tire construction like radial & bias) can cause adverse handling! Is this just more legal BS that lawyers come up with or do I need to be concerned? Also note I mean something like a matching pair of 235/70-15's on the rear & a matching pair of 205/70-15's on the front. Might be different brands but same construction, speed rating,etc.