Different Sounds for Different Fire Modes (Suggestion)

I was just wondering if it'd be a good idea to have different sounds queues for different fire modes. You wouldn't have to move your focus away from the centre (to the bottom-right) as you do with an actual firearm to check the fire mode the weapon is currently in. The ammo check and fire mode cycling have different timings so you wouldn't have to do the former to recheck the fire mode. It doesn't have to be vastly different. Maybe just a slightly lower pitch, multiple successive clicking sounds, a different click sound, etc. that a person that has played numerous hours of the game would recognize. What do you guys think?

Why would flicking a switch sound different depending on which way you flick it?