Should I try getting clients before becoming certified?

After following Brooke’s work and using the Model for several years, I finally made the decision to join the September certification group. I’ve been immersed in marketing and coaching research and I’m eager to launch a business. I’ve been hearing advice from some life coach business mentors who suggest getting clients immediately (and not waiting to get certified). I know that this is a decision I need to make for myself, but I’m curious about Brooke’s perspective on this question–is it a good business strategy to go through the certification process first, or should I start coaching paid clients and learn as I go? Thanks!