If you run it to a pcv it will just burn off the blow-by. It might smoke a little some times. If you just run a tube down it will slobber oil on the engine and transmisson which could look like a oil leak sometimes.
yeah on my dads hamb unfriendly corvette he has it going to his air cleaner, but my air cleaner doesnt have a place to hook it up to.
yeah i have noticed it a little bit, like a few drops here and there, but my oil leak was definetly my intake