The data of merged showers are in a separate common-block, and even if the routine ZAUSHO is called the shower information in ZATRS is still that of the individual showers. Hence care should be taken if showers are merged : loop only seen charged particles in ZATRS, and neutrals in ZACLU. Further caution is needed in this case, since the showers in ZACLU might be merged by neutrals and charged, and to avoid double-counting the charged contribution should be subtracted of. In real life, it is a hard problem to match tracks with showers, in particular for electrons. However, in the clean conditions of SGV, it is rather easy : there is no brems-strahlung in the detector, and the separation between electromagnetic and hadronic showers is perfect. Therefore, it is suggested to do this subtraction simply by looking at the list CLUORI of contributing showers in each cluster, even though it is to cheat a bit.