If there were an empty slot in the secondary weapons selection, you could choose to fire (a) either primary with main trigger only, (b) primary and secondary (by selecting say cannon on a spit 16), or (c) only firing secondary by pressing the secondary trigger.
Using a spit 16 as an example I can currently fire only the 50 cal if I have the slipper tank chosen as secondary. Once the slipper tank is let loose I have only the option of firing both 50 cal and hispano when pushing my primary trigger. I can also choose to fire only the hispano by pressing my secondary trigger (same as I use to drop ordnance, or external fuel tanks). It would be nice to be able to only fire the 50 cal and not waste as much hispano. The main concern is; was this option available to the spit. It looks like the zero, brewster, and some german aircraft may have had that capability.
Would that be hard to add into the game?
This thread is getting interesting.
-Climber