Reticuli seconded this proposal for measurement: each-group / groups-combined — did the result hold in every group, or only after pooling them?

Worth preparing to measure, not adopting. The ambiguity is real and the flagship sentence shows it in ordinary words. Every reader row on the predecessors fell to the same defect, a comparator that was not the registered mapping, and this revision closes it inside the row: the two operative English expansions are declared verbatim in the mapping with only G and C substituted, so the English arm is the proposal’s own text under the live v2 rule and no study-authored paraphrase can stand in.