You are correct too, Dave...I tend to devote the reg buttons to specific R1 sounds, and then use R2 and R3 for sounds to layer with R1.

For example, my reg#6 has R1: SA2 Jazz Trumpet, R2: SA Soft Horns, R3: Oberheim Strings.

I can add one or both in most cases...volumes are set for maximum blending, as are effects and panning.

It's getting the fine details right that take so much time, but once done, and stored...away we go!

Ian