I got Backbeat SAGE Expansion and I am very happy of it. It sounds so much good. But I noted that it lacks ARRANGEMENT SECTIONS grooves. I want to say that for each groove would have been very useful "intros, versus and chorus sub-grooves". Now, if I use a groove for a versus, I haven't a similar but stronger groove to use in the chorus section, I have only 2 or 3 grooves of similar atmosphere.
Obviously the versus groove utilized in chorus section makes the arrangement less interesting.