This is how Unity is designed to work. The first forwarding station (60 in this case) will always be the station what Unity integrates on. Your best bet is to go in and assign 60 as an alternate extension to the subscriber that owns 6000.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...