Starnes & Shah: 'Prodigal Son'

[Dangerous]

Yeah, automation would only be achievable through a plugin with Reaper I believe. Not that I've ever had a need for it. Time and phasing relationships between tracks are usually synchronised in the digital world so automaton would not normally be required. Time shifting plugins are very useful though, for more precise timing alignment of phasing issues. Automation of these setting can be useful for crazy comb filtering type effects. A manual flanging control if you like.