yo Hot,if you don't like the pre-programmed effect,do you have any effects pedals like guitar players? Some of them;even the cheap ones have a passible leslie effect;if so run your board thru that.Not to knock your MM6,but the price point boards do have some limitations.Hope LORD blesses you to step up to a 5 or Motif XS.(I could just about replace my clone Korg CX 3 -the B3 sounds are THAT good in the XS.Saw Chester Thompson from santana using 2 Motifs;one for B3 ,another for Evrything else.))