Ah yes, this makes good sense. I get you now.Take 3 sets of measurements back to back while changing nothing. Look at the delay column for each measurement. For example, for the midbass, 2.06ms is the reading for measurement 1. Is that the same delay value (i.e. withing +- 0.02ms) for the midbass in measurement 2 and measurement 3? Or do the delays vary? If so, by how much? You are looking for consistency of delay for each measurement session across channels. Hope that helps.