The addition of the new Stiletto Combat Drive completely transformed the combat effectiveness of the Dark Zephyr.
As a short-ranged mech that needed to be within tossing distance of its target in order to make meaningful contributions to an ongoing battle, speed had always been its greatest strength and limitation.
On one hand, it was by far the fastest mech in the Larkinson Army.
On the other hand, other expert mechs such as the Amaranto and the Promethea could easily deal more damage to distant targets without moving from their places.
Venerable Tusa had always been afraid of losing relevance on the battlefield. The rising trends of the Red Ocean posed a grave threat to him as light mechs were not as suited to fight against large enemies as other machines.
The new customized combat drive solved most of his concerns.