Latest SketchUcam generated NO backtracking ("needling'), thus no need to over tweak the design or manually edit the generated g-code before running such "complex" jobs. 100IPM, 1/8" end mill, 3/32" DOC in 3/4" plywood with myOX. GWcalculator indicates I could run the job a whole lot quicker (for rougher cut), as much as four times quicker ! Plywood is not that nice to cut into, especially at too high a feed. Maybe doing a first "slow" pass cut through the first ply cleanly and then steam through the others?