I regularly ran over 45 miles out from the dock into the Gulf of Mexico and have gone up to around 75 miles out with a buddy boat. I think my longest round trip was like 176 miles in a day on a 2003 210. I never worried about the boat because it would not sink. I did leave the 140 4 stroke running from the time I left the dock until I returned though. That way if it shut off I would know I had a problem. I also had radar and from time to time took a satt phone with me for saftey (just incase).