Here we go again...no time to enjoy the journey, just that aching need to get there here and now this microsecond and to hell with and damn the torpedos how we got there.
One word: MUSIC
Components are DESIGNED to be listened to with real music, in real time, under real-use situations, not facsimile thereof or some contrived and imagined scheme designed to shortcut the process. If it's a good piece of gear, just use it properly and enjoy it. It will eventually "break in" whatever the heck that actually means. It already has most of the qualities inherent in its design, and chances are if it was manufactured by a quality operation, it was thoroughly tested and found to be well within its operating specifications.
There is no guarantee that whatever method is used will reveal the final outcome in the proper system context and listening environment, EXCEPT actual use as intended. This false break-in stuff is for the birds, distracts us from the music, remember that?, and just puts money into low value junk like break-in "burners," CDs and records.
Just play music through the component and enjoy the ride.
Now let me tell you what I really think. ;-)
Steve