I have no idea what the Sportstar might be but that particular party trick is a good way to end up embarrassed in the event of a cessation of noise .. yes, I know, we all did it as youngsters.
I do that party trick at other airfields in my SportStar. Spot landing / short landings must be practised regularly anyway!
This is not your daddy's Cessna.
To perform it properly, you do a steep descent with full 50 degree parachute (otherwise known as flaps), the engine very close to, if not at, idle, at what would otherwise be just about your clean best glide.
If the noise, which you were not using anyway, stops, you put your flaps away and probably end up landing halfway down the runway.