Test: paid workshop for past clients only, no cold audience

Running a small experiment against my own bad habit. My theory is that my problem was never the offer, it was that I kept pitching it to people who had no reason to care yet. So for the next three weeks I'm doing one paid workshop, invite only to the six people who have actually paid me before, and I'm not posting about it anywhere. If they don't bite, the second offer isn't the issue and my audience is.