Both hands on flight controls after V1 - tradition, myth or technical fact.

[Capt Claret]

Take-off, auto throttle at set take-off power, not modulating.

Approach (B717), auto throttle modulates until flare (30') when they retard to idle.

Hence, guard them on approach but at V1, remove the temptation to suddenly retard them if there's a big bang.