That is another thing I should mention. I got to just over 20 hours on my last oil change before the oil started turning black. Hopefully a good sign (I have no data for how long that should take as I was renting before this). AGL is going to do a compression check, change the oil, oil analysis, borescope, etc. Hopefully it all comes back good. Last annual compressions came back varied (some low 60's some as high as 78), but the engine had only 17 hours on it at the time. So hopefully things have dramatically improved with more break-in time.