Everyone close to me, including my co-founder, keeps telling me to stay fulltime until I have a replacement income from GridSpy. It sounds like there is contradiction on this from the HN crowd.
On the other hand, if you have responsibility to children, a partner, a mortgage payment etc then yeah, you need to know you won't let those things fall apart.
I personally am used to living off a small income because I've been going to school for the past many years. If I was used to $80k a year in earnings, it would take alot more to make the plunge to full-time.
When you are working any type of demanding full-time job, you are asked to problem solve, innovate, and provide meaningful contributions. Simply put, the more thought and inspiration you put into your full-time job, the less you have for your baby, your startup. That's not to say you have NONE, it just means you have less. Less energy, less brainpower, less time, just less.
Odd jobs, on the other hand, work more like a release for your brain. For Bill, tutoring math was easy, fun, and fulfilling. It re-filled his inspiration, rather than drained it.
Way to go Bill, and thanks for this post. jv