the previous stage has completed providing acceleration, to
minimize drag of the sustainer's coast phase before ignition.
Recovery, whether the remainder of the flight is nominal or
- not, usually works best when the states are separated. So,
+ not, usually works best when the stages are separated. So,
the "best" way to configure a pyro channel for a separation
charge is to just set "after motor number". For a 2-stage
project, set this to "1". This will cause the pyro channel