These are 2011 SAP-2009 lodgements; this calculator implements current
RdSAP10, which has since revised several U-value tables. Closeness to
lodged was never evidence of mapper correctness (nor is a gap evidence
against it) -- the prior commit's comments and worklist entries wrongly
framed 16/20 "matching lodged" as validation and the other 4 as
anomalies needing explanation. Corrected the comments to state what the
batch actually shows: all 20 structurally distinct certs map without
error and produce plausible scores. Real accuracy validation still
needs an Elmhurst RdSAP10 rebuild on the same methodology as the
engine, which remains open.