The maps, axis, and scaling information is a pretty straightforward thing to do. I don't understand some of these other posts by 'those in the know' about the stock PCM not having the 'resolution' to do this or that...
I can only wonder if it's similar to GM hardware in that issues exist in A/D converter resolution. I've put a 3 BAR calibration into a GM box successfully as have many others, but there is a much larger range between cells when this is done. Adding more table entries does not overcome this. I didn't find my application to be difficult to tune but then again my understanding is that Dodge / Jeep programming relies heavily on calculated curves vs tables?

I have an interest in Jtec as I have a friend with an OBDII Jeep that is installing a stroker engine. We are discussing using a GM ECM in his vehicle but it would be neat to be able to work with the OE controller. I also have a Jeep which will get a stroker but I'm dedicated to using a GM computer.