Backhand sidespin/banana flick utilization

What's the scenario where this is most useful. I've gathered that it's to replace a forehand push on a short backspin serve. 

I'm trying to kinda figure out how to practice it with my robot, but is the point of the sidespin to help "lift" the backspin on the short return? I feel like I can use this move when the ball has nospin or short top spin, but it's still difficult to lift it on the short backspin.

Is it just a case of more practice, or should I not be trying to really use this on short backspin serve return.