I think Grant may on to something 🙂 . I just got a used Rane SL1 to see if could use my laptop/CDJ-1000Kk3’s as a backup for my 2000 nexuses in case of an accident. Burning CD’s really doesn’t work in a crisis situation. I experienced just the same and it was like a fluent feeling, responsive but not, like I did the right adjustment to discover moments later it wasn’t enough or to much. Of course I had Master Tempo on and really didn’t think that could have an impact like that. Thanks for the tip, Grant. I’ll turn the Master Tempo off during adjustments and see what happens 🙂 .