Hi there, to be honest, I do not have all the shape details in mind for the older boards, especially as I am mainly riding 99/115/40 sizes myself. I think in general our riders are always looking for overall improvements in both speed and control, without being solely focussed on GPS top end speeds. Probably best to dive into some GPS forums to see what the end users feel about the shapes there I guess, our team riders are more focussed on allround top speed, control and gybing and this is how we/they test the boards?