| Send something with a very obvious transient like a side-stick sample through the same round trip (easy to compare and measure the delay visually). Bus that track to a new track and you'll see and be able to measure the delay. To compensate for the bus delay (which you won't have when you normally just use the insert) run the same thing again but without the hardware inserted. Then subtract this delay from the delay you encountered before. Now you have your insert delay.
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