If you go to the panhandle of Florida, the tides are only about a foot and in the Keys, it is about the same. Some parts of the world have higher tides than others and the greater the distance between high and low tide, the greater the currents and the more difficult it is to manage a boat.
The tidal currents along the Georgia coast are tricky. Anyone doing coastal fishing is better off with a smaller boat. There are times I wish I had a bigger boat but in reality I would not use it as much. When I want to fish deep, it is cheaper to charter a boat a few times a year. Cost is the reason that I keep my boat at a marina. If I had my boat on a trailer, I would need a bigger car or truck and this would be added insurance. Hauling a boat over 300 miles one way is expensive. When the numbers are put on paper, using a marina is less expensive than keeping a boat at home. The downside is that I only use the boat along the Georgia coast.
I provided the information so that Jeykll can do his "research". Only someone who knew the area could have provided some of what I wrote. I'm closer to him than he realizes.
In fact, between Jeykll and Cumberland, there are some shallows that must be avoided when heading between the two islands. On the ocean side of Cumberland, at the northern end, there is a creek that often has good trout fishing. A big boat cannot get in that creek and a smaller boat can only get in there at high tide. If a boat stays in that creek too long, it will have to wait for the next high tide.
There is an old saying, "Those who do not tell the truth, do not trust the words of others." I'm beginning to believe that this saying applies to you and your buddies.