How much time do you spend tracking everything? (I assume this is accounted for on a second-by-second accounting.)
Takes about 10 seconds max (copy paste ticket #, type meeting name, etc)
With a context switch every 15mins or quicker... probably easily 1 minute or 1.5 minutes per hour of work.
So somewhere like 1-2% "tax" on my time.
In practice though...I feel like an athlete and training my concentration and tracking results.
Having those few seconds sometimes helps you align efforts better