Using the lower rate was very smooth. Essentially it looks like a barrel rolling around itself in a tub of water using the low rate rudder. Once you have your timing the nose doesn't move!! Like you, mine come out with more wobble using the higher rates. Perhaps a lot more expo would correct it? It was the same way with the Edge and the 35% Sukhoi. The only place I would use high rate rudder was in high alpha knife or some other hover, tumble, or spin maneuvers. A low rate rudder worked, and works, out a lot better for harrier roll stuff. Thre are some times where I'll use high rate rudder for basic steering in a harrier, but not many. Generally if you stay ahead of the plane you don't need the big rudder moves unless you want to make a big change.