Hi Graham,
Having played Hammonds for long time
L+M 100, B3 they where ment to simulate the footages of a Pipe Organ. Although notting will sound like a real Pipe Organ you can get very close by adjusting the Drawbars for the acoustics in the room you are playing. One of the great things of electronic drawbars is that you don`t have to oil them!!!!! Best of luck, have fun!!
jedi