I think the Axis Super Sport sounds a little more restrained and refined than the Axis, and I think it has a lot to do with the tone control and the extra connections for splitting the coils on the humbuckers in the in-between positions on the five way switch. Of course, the mass of the Floyd adds it's own touch to the Axis' tone, and I think (though I haven't measured to check, yet) that the pickups are a little closer to the strings in the Axis than in the Sport or Super Sport (but I'll have to check that)...