Maui....didn't say it was a GOOD idea, just a great one.
And I never heard of the power loss after T/O thing.
But....I know a long time back to re-cycle the auto-throttle on the '9 (which was routine) we had to pull the power back to barely level flight thrust sometime during climb then put it back up to CLB thrust again. If you saw contrails off in the distance late in the day you could see the level off segment. A mod removed that need later.