Not specific to the Rotax, here is several decades of general practice:
1) At top of descent, reduce throttle slowly but leave prop as-is (cruise rpm).
2) In the traffic pattern, along with landing checklist (flaps, undercarriage,...) set prop to high rpm. This will increase drag, giving a steeper approach angle, AND give you faster response in event of a go-around.
As I stated, this is a generic procedure. What does Rotax say about it? I should think if they discourage the above, would have publicized it.