Turbo,
Don’t talk rubbish l have own 4 jabs one 4 cylinder never missed a beat and 3 6 cylinders 2 modified by Micheal Sharples and didn’t miss a beat and one certified built by Jabiru. I have done 1500 hrs behind These engines, l have had some great ones and a couple shit ones. My plane have always been serviced at 25 hr intervals and all the problems l have had over the years have been caused by jab covering their arse.