So I like APP/TWR control better on north and South, while keeping elgaton Centering Tokyo (RJTG) and controlling pilots all the way from tokyo to Osaka. Maybe he could sit his tower in chubu (midway) instead of Narita (where SHM wants tobe). that way we get the whore area RJBB RJGG RJAA under good simulation of controlled scenery.
I believe Elgaton is considering Central (Tokyo) for Center position, but it is great to keep north and south for free range flying.
GCMAP
Note: Circles represent 100nm range from center
Note: Narita (RJAA_TW, SHM), Tokyo Center located in Chubu (RJTG_CT, elgaton), Kansai (RJBB_TW, IH-COL)