Testing a 3-day welcome sequence to fix inconsistent lead flow

I'm going to stop changing everything at once. For the next four weeks I'm keeping my posting schedule and my referral asks exactly as they are, and changing only one thing: every new subscriber gets a three-email welcome sequence within 72 hours instead of my current single email. My hunch is that leads feel inconsistent because people sign up and then hear nothing for a week, so the sequence should convert more of the same traffic.