Mine was an old primorac carbon whose outer ply was harder than usual. It gives excellent confidence for direct and fast shots. Spin can lack due to rubber or technique because its contact duration is very short. Also in short game it lacks control much. But it fits almost all rubbers, with hard rubbers it lost almost all feeling. I think this blade was one of super star in speed glue era, nowadays more off-, off blades favorable for variable players, even top pros do not use that fast and stiff blade. Of course it depends on the taste of player.
