I am looking at the piston version.. I spend most of my time in Colorado and at present the price difference between JET A1 and 100ll is insignificant. The capital cost difference between the turbine and the piston is substantially different hence my looking at the piston.
However, I am very concerned at IO540's mention of the fact that they have a high engine failure rate coupled with the point that they do not meet tbo. Why would this be the case ? Poor engine management I suspect during decent.
I am looking at a 2002 model which does have speed brakes. I wonder if the earlier variants suffered more that later ones ?