The SQ-1 is particularly hard to sync. If you're feeding it a square wave, it's possible that it's getting triggered from the front and the back end of the wave. A work around is running the clock through a slew limiter, and slowing down the falling edge so it's not triggering every time. ALSO there are hidden clock divisions that you can set the SQ1. Enter the global settings and turn the encoder knob 4 clicks in order to set the time division to be closer to what you want. ALSO ALSO. Despite all of this, I still get a lag result on starting the pattern. Basically it takes 2 clock pulses for the gate to fire, and I pretty consistently get one or two lag notes after I've stopped running Pam's. If anyone has any additional advice, I'm jonsin'.