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I believe I've fixed it with reducing the non print travel from 300ms to 100ms, and giving the belts another round of tightening.

Thanks for the help!

Yes, and calibrated each tower, and set bed center height.

It's random each time. Sometimes a few mm height, sometimes halfway up the towers.

Everything seems to work really well, right out the gate with this printer. I do have 1 issue that I'm not sure where to start with troubleshooting - When an object starts printing - the print head shoots down towards the print bed, and just randomly "picks a spot" to start printing - maybe an inch ...