Well, if you're so concerned with a wheel being centered you're not going to figure out that by using just a truing stand and a spoke wrench. You'll need a dishing gauge, too, or something to confirm your truing stand is perfectly calibrated. I think Park Tools makes some overpriced piece of aluminum that is suppose to act as a perfectly centered wheel in order to calibrate their truing stands. For what it's worth, I have a Park TS-2.2, a Park dishing gauge, and a that silly Park centering gauge. The centering gauge is useless.