I was at the Worcester MA, fishing, and outdoor show this past weekend, and I was looking at the boat exibits. My question is why are Nitros, the only boat that has a bead of silicone under the rub rail?? I thought because mine is an older model, that's just the way they did it back then. All the new Nitros have it also, what's up with that? Tritons didn't have it, Skeeters didn't have it, Rangers didn't have it, and except for the high end Rangers, and Skeeters, the prices weren't that different from each other. Any opinions on this, thanks.