Multi-scale contour plots of the reference setup (KS, top-hat filter) without masks for γ-2PCFs and HOS. Fisher forecasts are computed for each individual scale of 2$\stackrel{\prime }{.}$34 (orange), 4$\stackrel{\prime }{.}$69 (green), 9$\stackrel{\prime }{.}$38 (purple); concatenation of 2$\stackrel{\prime }{.}$34 and 4$\stackrel{\prime }{.}$69 (brown); concatenation of 2$\stackrel{\prime }{.}$34, 4$\stackrel{\prime }{.}$69, and 9$\stackrel{\prime }{.}$38 (cyan); and the full-range of scales for γ-2PCFs (red). MFs and BNs do not exhibit the highest smoothing scale (9$\stackrel{\prime }{.}$38) since it does not satisfy the SMAPE criterion.