(a) Distance between initial particle release and the eventual point of maximum energy particle release into the flux tube observed by Solar Orbiter versus CME speed for DME events (solid circles) and non-DME events (open diamonds). (b) E₀ and E_max versus the distance between initial and maximum energy release. (c) Distance between initial and maximum energy release versus footpoint location relative to the associated flare site for different CME speeds (indicated by symbol color).