I definitely feel your confusion, chas! I like that drier jazz club sound as well, but the prevalent sound amongst amateurs that still play the real thing, especially over the pond (as you could hear from that wild Caravan track!) is for a more drenched sound. Plus it does help ‘join up’ some of the smears and glisses and make them a little less stark. The main thing is to not use a ‘really good’ reverb, the nastiest spring reverb pre-Leslie (rather than say a nice hall reverb post-Leslie) is what defines the sound!

BTW, old joke…

Q. Do you know what happens when a German organist gets to the saddest phrase in the saddest song he knows?

A. He turns the Leslie to Slow! 😂