I’m switching back and forth between editing and podcast and composing music for the podcast. I would really prefer that setting to be project-specific. Anything I can do?
You could use a key command.
Transport: Exchange Time Formats, default is Num., or assign your own.
I remember this has been mentioned before but I can’t remember if there is a feature request created for this already.
I do agree though, time base should be stored in the project, not globally.
It seems that you actually made a feature request for this earlier this year 
And I also agree 100%
That was not me. Glad to know I have support on this. Driving me a little nutty.