Splitting out positions with no traffic is proven to be just as dangerous and prone to making errors as when it’s busy and you’re not split out. There needs to be a certain level of engagement to keep you sharp.
I didn't know this was proven. Did you have proof? If you're referring to the Yorkes-Dobson correlation of arousal to performance you're making a large leap in logic.
-You're assuming that working GC and LC combined with one airplane is increasing stimulation (stress) enough to increase performance. Which it probably isn't, especially if it is a normal situation and especially given the comments about it being just one airplane.
-You're also asking that the increase in performance is greater than any potential gain of having two people look at a situation for potential errors.
-You're also assuming that the level of stimulation (stress) provided by interacting with another coworker would not provide the same or greater level of performance.
-You're also ignoring obvious deficiencies with single person operations such as frequency management, tower cab or radar room layout (can you reach the phone or FDIO without walking across the room? How far does your headset stretch?), lack of tools to do your job more efficiently (LUAW), etc.
Yes, we all cut some corners sometimes for some reasons, but this should not be the standard daily practice. The standard exists for a reason, and even if you don't believe in the reason it's kind of what you're paid to do.
If you’re afraid of working positions combined just bid a supe job it’s ok buddy
A retarded monkey can do this job. I'm glad you have an ego boner from checking out at a facility after your second TRB.