True stereo is one of the biggest problems with Leslie sims, especially built-ins... Many do not offer a stereo WIDTH parameter (only the G70 MFX VK sim has that, the HB section has no controls at all), and if you play out live with your speakers say 20' apart, the Leslie is 20' wide too. Unrealistic. Fine for the 3' separated internal speakers, but a 20' wide Leslie? Leslie NEVER built one of those!