[quote=@Unoedipal]
<Snipped quote by Turboshitter>

The only instance we've seen of it having a toggle switch is Fran. So yeah, active implicitly.

In the first place, if it was a Master privilege then Lancelot wouldn't have happened.
[/quote]

Lancelot [i]chose[/i] to keep it on though, didn't he? And Illya kept it on constantly to punish Berserker (even though doing so hurt her), so it must have a toggle switch.