RE: 3 hours cutting a trail.
I agree with Washington Hunter, your new trail won't screw up your hunting this year. The deer WILL start using your trail very soon. They are a lot like humans in taking the path of least resistance. Getting in quietly and as scentless as possible is better than pushing your way in through the brush. That would scare the deer on the way in in addition to depositing scent all over the place right at a deer's nose height. In my opinion, clearing a path so that you don't have to touch vegetation on the way in is most important. Wear rubber boots and possibly a little cover scent on them to avoid leaving a scent trail.
I did this a couple years ago and watched a huge buck walk down the same path I took. He never noticed I'd been there until he sniffed the only twig I touched on the way in. THAT caused him to spin around and beat feet out of there, but my ground scent never spooked him.