Shows minor gains. But still gains. I have seen very similar things. The one thing that will make the speedzone a bit more difficult for some is a bit of fade bias. When you put the club down is want to slide open. I love that. Others that tend to fight a fade may not.
You fit people and I don’t, so you must see more people swing the various heads than I. However, I think the general consensus was the the F9 9* head had fade bias to it as well. One of the great things about the Cobra product, though is the adapter allows for a draw setting and it does not cause the head to look extremely closed, as some of the adapters do when in the draw setting.