24 awg is a PITA unless you are using high density D-sub pins, and then it’s still a pain to work with because they are so small. I know the current load requirements don’t require a larger conductor, but handling/installation might.
I have a 5 conductor 24 awg cable going back to my pitch trim Servo on the tail, and every time I have to work on it, like right now during my paint process with removing/re-installing my tail feathers, I kick myself in the butt for using such small wires. Those small wires can handle the load, but can they - or you- handle the abuse they might get during inspection or servicing? Worried about weight? The bugs you collect on the tail on a typical summer flight weigh more than the difference.