Etiquette
Coming back
Reference the first clip in a line, say what to keep and what to change, and skip the introductions; the second brief is shorter and better if the first was read.
Guides on Etiquette: Being declined, Nothing exotic, Opening well
A second commission to the same judge needs a shorter brief than the first: reference the last clip, say only what changes, and skip the introductions. The first brief introduced you and set a register from scratch; writing the second as though none of that happened is the most common mistake repeat buyers make.
Start from the last clip, not from zero
The single most useful line in a second brief is a reference to what already happened. "Loved the honest read last time, want something similar but a bit longer" tells the judge more in one sentence than three paragraphs of fresh description would. If what you actually want is close to a rerun, asking a judge to do the same again is a fair request too, provided you still restate the specifics. It also signals something the judge cares about: that the first clip landed, which is feedback they otherwise rarely get.
This is not the same move as what a great review does on the judge's side of the transaction. That is about craft. This is about what you, the buyer, owe the brief. A judge who has to reconstruct your taste from scratch every time is doing the work your reference sentence should have done.
Say what changes, not everything
A second brief is a delta, not a rewrite. If the register stays the same, say so and move on; if it shifts, name only the shift. "Same tone, but address my stamina worry this time" is a complete brief for a returning client, because the judge already has the rest.
Resist the urge to re-explain the parts that worked. Padding a short, accurate brief with restated context does not make it more thorough, it makes the actual new information harder to find. Judges read briefs quickly between other work, and a delta buried in three paragraphs of throat-clearing gets skimmed the same as a bad one. That is how most people read on screens: in Jakob Nielsen's 1997 usability research for Nielsen Norman Group, 79 percent of test users scanned any new page and only 16 percent read word by word.
If a number was part of what the first clip addressed, it is worth taking a proper measurement once rather than re-describing an estimate every time you write in, since a stated figure never needs restating.
Skip the introductions
You do not need to re-state who you are, why you are asking, or that you enjoyed the last clip in detail. A line of thanks is welcome and worth sending regardless, but it belongs in its own short message, not stitched into the top of a new brief where it delays the part the judge is actually reading for.
The etiquette here is the same one that governs any professional relationship you return to. You do not re-introduce yourself to a hairdresser you have seen twice before; you say what is different this time and let the history do the rest. Most of what reads as judge etiquette is exactly this kind of ordinary manners transplanted into an unfamiliar setting, which is worth remembering when a request feels like it needs more ceremony than it does.
When the judge has kept notes
Some judges keep short notes on regular clients - a register, an edge, a callback worth reusing - specifically so a second brief can be this short without losing anything. If a judge has told you they do this, lean on it: a one-line reference is enough, because the judge is holding the rest of the context on their side. If you are not sure whether a given judge works this way, it costs nothing to ask, and most will simply tell you rather than leave you guessing at how much to restate.
Either way, the buyer's half of the etiquette does not change. Whether the judge remembers everything or nothing, a short, accurate delta is still the correct thing to send; it is just that a judge with notes needs slightly less of it to work from.
What this is not
A short second brief is not the same thing as building a long-term rapport with a judge, which is its own habit with its own etiquette around pacing and notes kept between commissions. It is also not a diagnostic exercise in reading what the first clip revealed about your original brief, which is a useful but separate discipline. This is narrower: the mechanics of writing message two well, on its own terms, whether or not you ever send a third.
An algorithm has no memory of your last submission to compare against, which is one more place where a person and a scoring system are doing structurally different jobs rather than competing versions of the same one, and it is also why an automated score cannot be diffed against a person's clip the way a second brief can be diffed against a first. A returning brief is a small thing to get right, but judges notice it, and it is one of the cheapest ways to make a second commission better than the first without spending anything extra to get there. If you are still weighing which route suits a given request at all, Rate Cock has that comparison written out directly.