Finally got time to change the oil. Odometer is on 11,000ish miles, so around 5k since I changed the blown head gasket & put in a thinner one along with some other mods. Oil was pretty dark, so I am going to start changing it a bit earlier. But she runs a bit smoother with some fresh Motul 5100 15w50 in it. Also was expecting some debris in the screens from the motor work, but they were surprisingly clean.
Still a clunky sounding motor, but then again....... so is my buddie's brand new RC390 with only 700 miles on it.