It just depends on where and how you want to spend your time. I've "micro-managed" myself to prove the point. I gave them that estimate up front--told them this was assuming I had dedicated time to work. After a week or two I went back at them with how much time I had spent, how far along, and if I was above/below my estimate. Only then did they push to clear my schedule so I could get the hours in.

The problem is that is a huge time-suck and they don't really care about the minutiae either. For me the whole goal is to keep the responsibilities clear and unnecessary communication to a minimum and I feel like that's done by building trust and being clear.