The other thing I forgot to say is that the people who have ended up being profitable leads read through my profile, including my reviews. That gave them a chance to see who I train and how I relate to and with my clients. If you can get a couple of people to review you and your style, that can help funnel the quality of your leads down to people likely to benefit from your style.
I have gotten more leads than I can use through IDEA. I think it is because of the great recommendations I have. Ask your clients, I have found mine very happy to recommend me. Not all of them have done it (those who did not refused because IDEA insists they register), you may want to tell them they will not be spammed if they are hesitant.