I've been playtesting these two sticks, this is my review: First of all, I'm a power top spin player ( aggressive, sometimes berserk according to my coach), with a full western forehand grip (almost extreme), and a 2 hnd backhand. Despite my style I prefer dense string patterns, currently playing with a leaded volkl Pb 10 mp. Speed Pro: Really solid frame, very control oriented, it does feel stiff, but not harsh at all, it's crisp and stable, perfect for flat hitting. Best shots for me were flat serve, and inside out forehand. It has a good sized sweet spot, but I prefer previous head shape, it had a better spin window, noticeable in killer returns and heavy top spin hitting. It has one of the densest string beds I've seen, in combination with the high stiffness it lacks some dwell time. I've found it pretty nice for slices and specially touch shots. All in all a great frame, better suited for hard courts, I've played four matches, against a two 5.0 and an open level player, mixed results but the stick performed greatly.