Some other things you will want the be aware of, as important as speed.
Remember your vehicle with the trailer is approximately twice a long as before, so you will need to allow more room when passing, you are also carrying more weight so allow more space for braking. Also you will need to make your turns a little wider.
You're only carrying less than 1000lbs. so you won't notice alot of difference.
Sorry about the comment earlier, I just couldn't resist a good opening, thanks for being the straight man.
Lou