Mexican stand-off with Phasors

[headborg 1]

Remember when the crew Mutinied in "Hatchery" and they were on the bridge with phasors pointed at each other......what if one of the MACO's had looked down and exclaimed......"Gee, My weapon is set to kill!" how would that have affected the stand-off? Can phasor settings be changed without interrupting their "cocked and locked and ready" status? It would be like setting around a table playing poker- "we see your stun setting and raise u to kill"!