honestly at this point, it would be something to preserve or refresh applied buffs and passively build reawaken gauge in increments for an extended period of downtime. similar meditate and anatman (before EW monk rework). but one of viper's issues in downtime phases is a common issue with RPR, MCH, and RDM gauge in similar scenarios. but then PCT is also just ridiculous in downtime given it can be used to generate 1 or multiple 1000+ potency nuke buttons which no other classes can really do. and DRG, NIN and MNK more or less operates from a timer which does better upon coming back from downtime.