I'm still using the Prophet '08, but the situations are similar. I group patches by tens and according to sound categories. For example, 20-29 will be strings, 30-39 brass, 40-41 leads, and so on. I dedicate program slots 1-19 to a random assortment of programs as needed, according to what I'm playing or recording. Hence, those first programs are constantly being changed or re-arranged. That way, I can put unrelated patches next to each other and quickly scroll from one to the next, as the music requires.