I'm just wondering how often, money being the issue, should one take online vocal lessons with Ken to get the most benefit out of this program? I practice to the different volumes, but there are times when I just need that explanation on a question I have. I feel like I have progressed through Ken's program, but I have tons of questions and need some one on one critique and observation into how I'm doing. I don't want to invest in another vocal coach or teacher whether local or online, since they don't teach what Ken has developed. The only thing is that they are cheaper, but not at the level that Ken is at. How do I go about this?