I've been using the Protank I/II coils in the Aerotank and Aero mini. They work fabulously with no issues for me. I also have the Aerotank bases on the PT I and II using the Protank coils and no issues either. The aero base really woke up the PT I and II performance for me.
I have not tried the Aerotank mini base on the PT II mini yet though.
I have not tried the Aerotank mini base on the PT II mini yet though.