The comparison of AAMs produced by different tools is a non-trivial task. For balanced reactions with complete AAMs, it is sufficient to test the corresponding ITS graphs for isomorphism. The situation is more complicated if a tool produces only a partial AAM, which is, in particular, the case for unbalanced reactions. A complete formal framework is described by Laffitte et al. In general, the comparison of partial AAMs is a difficult problem. We, therefore, consider here only the special case that the AAMs cover the reaction center, i.e., that partial AAMs are "good" in the sense of Def. 6 in our previous work. Some mathematical results that are directly relevant to our discussion are provided in Appendix B since the complete formal statements require notation borrowed from our previous work that we refrain from introducing in the main text for ease of presentation.