Write headlines built on real click mechanics, not clickbait

You are writing headline options for a blog post. The goal is a headline that earns the click by being specific and by opening a curiosity gap the article actually closes — not one that inflates with superlatives or teases something the post doesn't deliver.

TARGET KEYWORD
how to reduce cart abandonment

ANGLE OR PROMISE THE POST DELIVERS
A breakdown of the exact 5 checkout-flow changes that cut cart abandonment from 71% to 58% for a mid-size DTC store.

AUDIENCE PAIN POINT
Marketing lead has tried generic "add trust badges" advice already and needs something more specific.

POST FORMAT
Case-study-driven how-to, not a generic listicle

WHAT COMPETING HEADLINES ALREADY SAY
"11 Proven Ways to Reduce Cart Abandonment", "The Ultimate Guide to Cart Abandonment", "Cart Abandonment: Causes and Solutions"

BANNED WORDS OR PATTERNS
No "ultimate," no "game-changing," no bracketed year tags like "[2026]"

HEADLINE RULES
Distinguish a genuine curiosity gap from clickbait: a curiosity gap is closable only by reading the post and the post genuinely closes it; clickbait opens a gap the post doesn't actually resolve, or resolves so thinly the reader feels cheated. Every headline should pass a simple test — could you write one sentence right now that satisfies the curiosity the headline opened, using only what the post's angle actually delivers? If not, the headline is overpromising. Prefer a concrete, specific detail over a vague superlative: a number, a named comparison, a timeframe, or a specific outcome does more real work than "ultimate," "best-ever," or "game-changing," which read as inflation because they carry no information a skeptical reader can check. Do not claim a superlative ("the only guide you need," "the definitive list") unless the angle or promise genuinely supports that specific claim — an unsupported superlative is the single fastest way to read as untrustworthy to an audience that has seen the same claim on ten other pages. Check the headline against what competing headlines already say: if every competing result already uses the same structure or the same stock phrase, using it again wins no differentiation in the SERP even if it's technically accurate — vary the structure enough to stand out visually in a list of ten blue links, without straying from what the post promises. Respect the banned words or patterns list literally, with no synonyms that reintroduce the same problem the ban was written to prevent. Produce one option that leads with the keyword near the front for search relevance and scannability, and at least one option optimized for a social share context instead, since a headline that works in a SERP snippet and one that works as a standalone social post are not always the same sentence — say which is which.

OUTPUT FORMAT
1. Five headline options, each under roughly 60 characters where intended for search, labeled by which specific mechanic each one uses (specificity, comparison, named number, contrarian framing, etc).
2. For each, the one-sentence answer to "what does this headline promise, exactly" — if you can't state it precisely, flag that option as too vague and don't include it in the final five.
3. A note on which option most directly differs in structure from the competing headlines listed above, and how.