For me, songs played on my arranger at a gig are arranged. Seems obvious I know but I find the style, voice, intro/ending etc that I want for each song I/we do. That can be a lot of work if one has even a repertoire of 100 songs or more.

So, for me, if I am to use my S970, I have to go through the same process(read work) that I did on my 4X to get those songs ready.

Like Deane, I use my Yammie (S970) mainly for holiday gigs...but still I like to use some of the same stuff I do on my 4X...duplicate work.

Again for me arrangers are for just what the name implies....arranging music. Arranging music takes time and sometimes I wonder, why 'arrange' music on more than one arranger?