Hi Bob,

In answer to your specific question : one of the groups I play with, sometimes do a medley of up to eight songs, with no actual breaks between the songs. So there is no opportunity to load different set-ups from SD Card, between the songs. All the songs within the medley, use different styles, tempos and sounds. I have the styles loaded in eight of the Custom memory locations and each style is linked into one of the eight Panel Memory locations, together with the sounds (Right1,Right2 and Left) and tempo, associated with each song. So, during the performance of the medley, it is only necessary to step through the Panel Memories 1-8 at the appropriate times, to advance to the set-up for the next song.
The Custom Memory is of course loaded from SD Card, prior to the medley performance and takes around 20 seconds to load.
The reason for using Custom Memory is that the styles used have been composed specifically for the songs within the medley, rather than using the 'generic' built-in styles.