Alex Hormozi's framework from £100M Offers: when scaling a channel, always try "more" first, then "better", then "new". Most companies jump straight to "new" without exhausting "more" and "better".
More: Increase volume on what's already working. If competitor keyword searches are converting at £400 CAC (below your £1,125 target), don't add a new channel yet. Buy more of those keywords. Increase bids to capture higher impression share. Expand to more competitor names. Add more similar high-intent keywords. Crank the volume until you hit a limit (costs rise above target or volume flatlines).
Why this works: scaling winners is lower risk than testing new channels. You already know it converts. You already have optimised creative and landing pages. You just need more of it. Most companies leave money on the table by moving to a new channel whilst their current channel still has room to grow.
Better: When "more" stops working (costs rise, volume flatlines), optimise the channel. Improve ad creative (test new hooks, visuals, CTAs). Optimise landing pages (test headlines, proof, CTAs). Refine targeting (exclude low-converting segments, focus budget on high-converters). Improve conversion rates so you can afford higher CPCs.
Example: Your competitor keyword costs rose from £5 CPC to £8 CPC. Before abandoning the channel, improve conversion rates. If you improve demo rate from 30% to 40%, you can now afford £10 CPC and stay within CAC targets. "Better" unlocks more room for "more".
New: Only after exhausting "more" and "better" do you add a new channel. You've maxed competitor keyword volume. You've optimised creative and landing pages and conversion rates are peaked. Now you've truly hit the limit. Add the next channel (solution category searches, then remarketing, then LinkedIn ads, working left through awareness stages).
The discipline: spend 60% of effort on "more" (scaling winners), 20% on "better" (optimising current channels), 20% on "new" (testing next channels). This prevents shiny object syndrome whilst ensuring you don't stagnate.