week 1 was sequential, but weeks 2 through 14 run on a loop.
that loop repeats 13 times with the same rhythm every single week, and the repetition is the entire point, because rhythm is what lets you separate real signal from noise over 100 days of sending.
THE WEEKLY RHYTHM
Here's what each day of the loop looks like once you're running it.
- Monday: write 10 new hook lines for the pipeline. Log every one in your hook bank.
- Tuesday: launch the one-variable test (one change only, nothing else touched). Test email goes live to 50% of the segment.
- Wednesday: maintain. Same test running at target volume. Log send data without making any changes.
- Thursday: maintain. Continue the test with no adjustments. Keep logging send data.
- Friday: measure the test against baseline and make a keep-or-kill call. Log the winner and pick your next test.
- Saturday: rotate inboxes and refresh list segments. Complete the inbox audit and reload the list for next week.
- Sunday: rest, with no sends going out. Review the week's scorecard quietly and update it.
THE FOUR ALLOWED VARIABLES
every tuesday you launch ONE of these tests. Running two at once is how data becomes useless over 100 days.
- OFFER: what you're proposing to the prospect, whether that's a demo, an audit, or a booked call.
- SUBJECT LINE: the subject line only, with the body staying identical.
- CTA: the ask at the end of the email, with the body above it staying identical.
- TARGETING: the ICP segment itself, with the copy staying identical.
THE ONE RULE
never change more than one variable at a time. this is the easiest rule in the playbook to break, and almost every team breaks it within the first three weeks. they change the offer AND the subject line because they have a "better idea." then reply rates move by two percentage points and they have no clue whether the offer was responsible, the subject line was responsible, or both contributed together.
one variable per test, every week, for 13 weeks straight. that is the full discipline the playbook demands.