dbrault,
I'm looking at USAJet for my post Army Career. I expect to be around 2K FW and 1K FWME PIC and will apply for the DC-9 and hope to move to PIC in the Falcon. If you work there now, how low are the annual flight times that are making you so concerned. How much of the airline is tied to the auto industry and is the managment looking for other cargo contracts?
Personally, I'd take the gig that gets you the PIC time and money faster, then save up a contingency fund should your airline go south. But if you won't fly more than 500 hours a year and you're just at an intermediate stop along your career path, maybe a "lateral" move may be in your best interest.
A buddy of mine turned down a job offer at Avantair two years ago. Were I in his shoes I would have taken the job based on what he told me about the company. For me, Avantair is still on the table. I'd apply if I were you, see the company first hand, then decide once you have a job offer.