I think I'm having an issue with some arcs or post processing. Running mach 3. The cutter is 'jittering' and doing huge 'jumps' around specific areas. I think it may have something to do with G91.1 curves, but I'm truly not sure. The points on the curve are labelled as G1 and G2 moves in the code, alternating. When it hits a nice symmetrical curve it flies through smoothly. This problem is only occurring on 2D contour toolpaths. I'm running a leadshine MX3660 with the 'smoother and pulse switch set to off.