I'm getting a little weary of the anti-FPE hysteria.
The study so freely circulated on the internet was NOT supported by further CPSC studies. There was never a recall, and they never lost their UL listing.
All breakers submitted to UL have to pass the same exact tests. Some may be eaasier to use, or be of better design- but they pass the same standard tests as regard "safety."
Replacement breakers are another issue. "Unique Breakkers," sold in the US, are not UL listed, and it's anyone's guess as to the meaning of the "ETL" tag on them. The ones manufactureed by Schneider for the Canadian market are, in fact, listed by UL-Canada.
For an opposing point of view regarding FPE, I suggest a search of back issues of "IAEI News." IAEI is the electrical inspectors' association- and they are no where near as concerned as some other groups.
FPE panels may not be my favcorite, but their presence is no reason to panic.