[dtw]

Well if the leakdown value is low/within spec, you probably wouldn't take the test any further. But if the results show higher ranges of leakdown, then yes, there is the somewhat subjective test of listening for the source of the leak.

What color is the smoke at startup? Is it only at startup? Sometimes oil seeps past the rings and pools a bit in the combustion chamber. This then get blown out at startup. I've seen this phenomenon on 911s that had no issues with ring wear...but I've also seen much larger startup 'puffs' on cars with worn out rings.