Just read your return from Narromine article. The incident you had with the engine missing happened to me in a J160 one afternoon on a clear day at 6500 ft. We had been climbing at full power for ages and decided to level out reducing power back to cruise, soon as we did this we felt vibrations through the airframe followed by a definate missing of the engine. My heart sank I can tell you even though we were over paddocks. Anyway applied carby heat and the engine coughed a bit more then cleaned up nicely to return to normal. Important lesson learned that carby iceing can occur at any power setting. If in future you sense vibrations through airframe especially when high apply carby heat.Could be iceing. Fly Safe.