Just has a X-16 take a crap. Still have a X-16 and X-15 and run chips in them. Was thinking about going to the elites as they are basicly the same units, just 5 inch screens. On which chip to buy, it depends on what your wants/needs are. I have 3 different chips. For me I don't like the 1ft contours as it's too many lines on the screen and for erie you really don't need that detail.