I'm still having trouble with my engine, and it's symptoms. It smokes only when hot (and I mean oil temperature hot, not coolant temperature hot), and when it's hot, it is CLOUDS, even on idle. When it's cold, it doesn't smoke even under load or revving. Compression is down maybe 40 points, the last time I checked, almost 3 weeks ago. It is still running, but there is a bit of odd rattle kind of noises from the engine. It reminds me of how my old Santa Fe sounded.

Does this indicate head gasket, or rings?

Btw, at random intervals, I see some coolant go missing from the res. This is not an every day thing, and it has never drained the bottle. The dummy gauge for coolant temperature does not indicate high temperature.