Derek,
I'm the WORST one to ask about programing tips because i rarely own a keyboard long enough to get into the meat and potatoes of it's O/S. I reccomend that you start with an organ patch that already has the desired effect, and substitute the new tone and re-save it to a better location.

Hope this helps, although it's a vague response. I pretty much play them the way they come out of the box, and when I get bored ... I sell. Sorry I couln't help you more !