You're correct about switchblades or gravity knives being lawful to possess in Upstate NY, provided: 1.) one has a valid hunting, fishing, or trapping license on their person, 2.) one is actually in the process of hunting, trapping, or fishing -- or en route to lawfully hunt, trap, or fish (within season). This is Conservation Law rather than Penal Law, but an exemption is found somewhere in the Penal Law's small print -- most cops are unaware of the particulars of knife law, however. If I recall correctly, the blade length permitted under this statute must be less than 3.75". Violation of this law is a Class A misdemeanor, punishable by up to a year in jail, UNLESS one has a prior conviction for ANY crime (misdemeanors and DWIs included), wherupon the charge is upgraded to a Class D felony (up to 7 years in prison -- usually much less). With the few exceptions of: 1.) the Conservation Law, 2.) the Federal "One Armed Man" law, 3.) and certain specified professions (including Warden, mail carrier, and Harbormaster), switchblades and gravity knives are specifically prohibited as "deadly weapons" and you can be arrested for selling, trading, giving, or "disposing of" them under the "Public Order -- Weapons Possession" section of the Penal Law.
Not only are there no pistol permits in Vermont, but guess what the State imposed penalty is for unauthorized possession of a sawed-off shotgun or firearm silencer? Confiscation and a FIVE DOLLAR fine! (Under Federal law, however, probably closer to 10 years). Don't be too eager to move to Vermont, though! The State law applies only to residents, and it gets COLD in the winter . . . quite often, the upper 2/3 of the state is buried under several feet of snow during the blizzards, making the roads impassible -- sometimes for weeks. Locals stock up on canned goods, firewood, and gas for the generators and snowmobiles. If it weren't for the winters, it'd be a great place to live.