The procedure for choosing output weights. First the training reservoir signals were collected and TE matrix was computed based on these signals. Next the mean TE of target unit was computed and only those units where chosen for output matrix computations which mean TE was higher then some Threshold. The threshold went from the minimum mean target TE to the maximum mean target TE in 100 steps. This was repeated 100 times. The network settings were same as in the IJCNN article for comparability reasons.