I don’t speak for TruTrak. I just speak from experience seeing them progress. The 182/PA-32 submission and approval took WAY longer than expected, which pushed the Mooney back, which has also gone through some redesign, which pushed the next model back, etc. With systems like an EFIS (G5, G3X, Aspen E5, etc), there is almost nothing specific to an airplane. The auto pilot is not only under scrutiny because of the Boeing issue recently, but it has to be extremely airframe specific. TruTrak could have moved much faster if they had developed an installation that left out some models of different airframes, but they have made a point of developing to include all models, which is a big plus. Who knows when a GFC500 will be available for my 1956 182. TruTrak is now.