Too much of a good thing

Devices are spice, not the meal. Drag the slider and watch the same idea go from sharp to suffocating.
Restraint Punchy Overload
The sweet spot is one strong device, well placed — not every device, every line.

Device ≠ appeal

A device is the tool; the appeal is the job it does. Match each device to what it's mainly pulling.
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Naming the device is step one. Saying what it does to the listener is where the real marks live.