These are like a 801 with a 510 fitting. I just looked on IKV sub forum and it states 3-4 drops per vendor recommendations. It is what I have been doing. I turned down my VV and it seems better. However, I wanted to go at least 5 volts on this atty considering it is 2.5ohms. Maybe It needs more time breaking in or something...all is good. At least I don't have the ash taste anymore...
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