Legalities aside, give some thought to the other drivers on the road. Many are in a hurry and not expecting to come up on something moving 1/5th their speed. Some are also young, exuberant, and inexperienced and haven't seen what can happen on the road. To them, a country road is the perfect excuse to 'cut loose'.
If the roads were level and straight, it wouldn't be much of an issue....but that's not Vt. Blind curves and down-grades will hide you until the last moment. Someone flying along at or above the legal limit could have his hands full avoiding you. Even if no harm is done, you've likely pi**ed someone off. Do it enough and someone will start pushing for laws that restrict our access. If damage is done, you'll be giving them live ammo to fight that battle with.
I've come to hate roading tractors and do it as little as possible with my own. It's necessary, however, when helping the neighbor. Still, while doing it, I always feel like I'm turning my back on a kid with a loaded gun.
Be very careful with left hand turns; especially if towing something bulky that you can't see around. They're the worst.
FWIW
Bob