You must be new. Shoreline is most definitely a double ramp. I launch next to people who actually know how to back down a ramp all the time. It’s plenty wide for two big boats...there should be four trailers in the water at the ramp. Only reason not to is a lack of knowledge or a lack of skill.Have you been there? Shoreline has two parallel ramps separated by a dock in the middle. They are most definitely not wide enough for two vehicles. I have never seen anyone trying to do that there. It would be comical.