Little update here, improved the top end a little and made some minor changes to the mixes and expression pedal settings.
This is about the best Leslie preset I’ve been able to come up with – runs auto speed for the horn and drum, is relatively bright and doesn’t drop the volume.
Updated the reverb to a bright shirt plate, which is off by default.
Needs to be used in stereo for the full effect.

I’ve never played a real Leslie but this program is really fun to play through and sounds great. Thank you for sharing it.