Careful Saboteur
Altering the original function of a device takes time, and you tend to prefer to be safer than sorry. You lose the fast sabotage ability, and gain the Planned Sabotage talent.
Ghost
You move quickly and quietly. You lose the fast sabotage ability, and gain the Shadower talent. You use Stealth instead of Disable Device as this sphere’s associated skill; if you gain the Skilled Sneak talent, it instead grants Disable Device as an additional associated skill.
Vandal
You lose the light step approach, and gain the Expert Saboteur talent.