When in dual panel mode and list view, the name column is maxwidth of a single window and all columns are NOT resizable. Makes it pretty annoying to use.
This should be fixed in 1.5.14:
http://downloads.binaryage.com/TotalFinder-1.5.14.dmg
Please report back if you still experience the bug.
I’m also currently experiencing this bug. When in list mode (dual panel view), I’m unable to scroll to the right, grab a column edge and drag it into view. Using 10.9.2 and the latest 1.5.22. Also, with large monitors, list mode details regularly need resizing. Can you add a max/min width preference for list view columns as well? Similar to Column view.