I programmed my CH Fighterstick to start guncamera recording when the trigger was pulled and stop recording 10 seconds after release. I did not find it especially useful. The setup for the shot (i.e. the 10 seconds before you shoot) is more critical than watching sprites or no sprites.
If you have a fighterstick its not very difficult, once the software configuration is explained. Thrustmaster stick owners claim the TM's are much easier to program, but that's hearsay.
Regards,
Malta