Wade, It takes time, lots of time. I suggest taking out the gibs "very carefully" to inspect and clean. I found all kinds of casting debris and rough edges that made my machine stall at certain points. I lightly sanded and deburred them, oiled them back up and was able to reduce all of the above. I'd also check all bolts, nuts that you can. My ballscrew housing bolts were loose in Y and X, made a big difference. If you're shimming your machine, look out for twisting. I was chasing my tail for days because of a shim. Hope that helps, feel free to fire away.