After you have used your really fancy mic's and measured to the half thousandth, use the crappy dental floss to confirm your "math". Unless of course your totally convinced YOUR math is good.
Strangely enough most proffessional race car teams DON'T take for granted the "math", the final check is "dental floss". Only way to be sure.
Following Blykins advice I DO drive it like I stole it, buy the good bearings and do the same!