Just came back from Daytona (I-4) doing about 75-80 mph. I was admiring how the boat/trailer really could handle the speeds.
Heh...yeah, I'm more likely to stick to ~72...the troopers around here in the mid atlantic are a little tougher on that. I know your stretch of I-4 though, so I'm not surprised...
have you checked the tongue weight?
You know, I haven't really. The tongue weight is actually quite low, because I can lift the tongue move the trailer, with the boat on it, by myself without much trouble. I expect the tongue weight is about 50lbs, perhaps a little more. I think of squirelly behavior when there is too much weight, but I guess too light would do that too.
This trailer used to have a platform screwed to it - looks like some old OSB - that rotted out and was just yanked off. I was thinking of replacing that with marine grade 3/4" ply and putting astroturf on it. I need to build a sail box anyway, so I can put that up front to increase the tongue weight. Thanks for the tip!