When the #s are low in the off hours and there are a lot of bases, especially if all teams cannot reach each other like Crater or BowlMA, it creates spread out limited action. For a new guy, they might not see anything going on, and won't know where to go to make their impact. If there is one red dot in an area and its a 15K p51. There isnt much ambition to roll.
A couple of ideas I think might be good are:
Colored zones that provide more perks and create a path to action for people, so that certain areas are more important than others.
Continue to make more maps with 15 mile max distance bases that are smaller in size. Heck, even 10 mile bases would be fine. Flying a whole sector for 1 red dot is too time consuming for the potential reward.
Change the maps at 3AM Estern to 9AM est that would be suitable for Euro players, have 5-6 smaller maps for this time zone. (May or may not be good for some but would create more action for off hours time zones.)
When players can hop onto a map, find a good fight, and be apart of it, that's when the #s start to pick up.
When players hop on to a map, see hardly nothing going on, with 1 plane dars in a few sectors, thats when people log to find something more actionable.