What are the advantages of Drawbars on an arranger which would make them must-have? You wouldn't want to have to fiddle around during a performance would you in preference to using much more precise and quick registration buttons??

I'm not an organ player (apart from playing simulated ones on Ty2) and I can see why it might be useful perhaps for quickly experimenting with mixtures when looking for new setups, but once saved to registrations is there really such a pressing need for them nowadays?

John