this is tooo serious to spend time on this ROP/LOP rubbish.
Actually, it's centrally relevant to working out what's causing the Jabiru engine failures. Does anyone have a clue where on the lean curve each of the cylinders on a Jabiru engine operates? If not, the analysis of the 'problem' is missing one key variable that drives CHT.
But in the weird and whacky world of aviation in Australia, 'discussions' are generally unhindered by trivialities like facts and cause.