I don't understand why its not so accurate when I run my sl3 with ipad tonetable. Tonetable app by itself sounds fine. My Latency setting is set to the lowest on sl3, I was running it as a Line input on my mixer don't know if that has anything to do with it or even the setting on the graph that shows the green circle. I'm not sure if that is setup correctly although I do see a pretty much perfect green circle...I do have it set correctly as far as 1khz & the 33rpms so again it works, but just when I'm cutting up it sounds a little laggy? Any help would be great!