You know, since they're legal here in Florida I assumed they were legal everywhere. I wonder what there is about an automatic knife in Maine's view that makes it any more dangerous that a manually opened knife? I can open my manual knives just about as quickly as my automatic knives. I've never understood this mentality.
I'm with bdavison. A laser is the finest dry fire practice aid I've ever used. I didn't used to like lasers but since "discovering" them for dry fire training I can't speak highly enough about them.