I honestly never remember the manual trigger salvo =)
It feels weird to have a close range cooking specialist have a special ability that is a long range poke. Its not like the krow where the special ability is a logical follow up from the close range blasters, as well as the actual main weapon.
And now that I think about it, I don't see the salvo being used by others a lot either. I suspect I'm not the only one that forgets.