Time marches on...
For the thriller book, I re-sent the e-mail queries I had not heard back from after 4 weeks. So, far I have gotten yet another- "not right for us at this time."
My job now is to find another set of agents and get to querying. At this time I am also going to start researching editors. I've actually had better luck with editors than agents in my career. I'll keep you posted.