I may possibly face the same situation (have to travel to attend a number of industrial fora), I am actually interested in knowing how it goes for you. I haven't had movement on my oath yet though (which I was actually hoping for because it may have conflicted with the meeting I am attending 2 weeks from now). It seems like for most people oath is scheduled about 3 or 4 weeks after receiving it.You are right but things are not always as planned. I have a planned travel in mid September, which cannot be postponed, which was scheduled before I got oath invitation. My oath is on Aug 30 and I will have just 9 business days to get passport, if I apply the next business day after my oath.