Middle slider function

Just wanted to pass on a new technique (to me) that I happened upon.

I have always set up my faders for use from one extreme to the other, but just worked out that if I have my drums(T1-4) set up as Max volume on B and Min on A… then put my beat repeat on B , along with my Thru (which I use to process my melodic echoplex looper input) I can have the following:

Middle …drums and melody (thru) both playing
Slide to A … drop out the drums
Slide to B … beat repeat what ever was captured before the slide

I am really enjoying this setup as it feels pretty instinctive (more than muting four buttons to cut out drums).