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The $\\pi^\\pm\\Sigma^\\mp / K^-_{stop}$ emission rates are reported as a function of $A$. These rates are discussed in comparison with previous findings. The ratio $\\pi^-\\Sigma^+/\\pi^+\\Sigma^-$ in p-shell nuclei is found to depart largely from that on hydrogen, which provides support for large in-medium effects possibly generated by the sub-threshold $\\Lambda(1405)$. 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