Kaddisfly, the Nord Electro in ANY of the 3 models, the 73, 61 or the module, to me, as a former Hammond B3, X66 player for many years, Nord was the best one even do, the user interface do not have similarities ( drawbars), but with their own design.
I had the chance to compare the Korg BX3, the Roland VK8 and the Nord Electro in the same PA system (flat, so no EQ would favor a particular model), also happen to have a M3 Hammond near by......well.....Nord was incredible!!....besides the BEST electronic Leslie emulation, the other sounded more like tremolo, not leslie.....to my ears and to about other "organ" players (5), the only thing I did not care for in the Nord, was the excesive overdrive even at its lowest setting, but the Vibratos, great !!!.
The other piano sounds are "gravy", but very good too.

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mdorantes