Kill the MFX, and see if the Tone is dead straight, or already has sampled Leslie on it...

The SRX-07 was derived primarily from earlier cards for the JV series, prior to the VK Leslie sim (the other one is not that good, IMO). From what I've heard, most of the patches were sampled Leslie...

One of my primary objections to the GW-8 (and to be honest, the FantomG too) was that most of the organ patches were slow Leslie'd samples run through the MFX. It's a totally different sound to running an un-Leslied sample through the Leslie. Stacked Leslies just don't sound right, to me at least...

Not to mention that with a REAL Leslie (or a Leslie sim) ALL of the notes are being thrown around at the same time (they are all run through the same spinning rotor), whereas a sampled Leslie, each note is running through a different horn position, at a different rate (sample transposition changes the speed of the horn) and it is, at least to my ears, utterly different in sound (and not in a pleasant way).

Plus, of course, it's the ramp up and down that is like the use of vibrato in a great singer... WHEN and how much you put on and when you take it back off again has much to do with the individual personality of the player...

It's like that old joke... "What does a German organist do during the most passionate, delicate moment of his entire show...? He finally hits 'SLOW' on the Leslie!"