Considering what you called the speed pro, you must think djokovic uses it. Well nope, but that for another day unless you want to know what he really uses. If that makes you want the speed pro less now, then stick with your blade. If you really liked it for itself and not because of fake paint jobs, then I would compare them side by side. Play a set with one and then another with the other (obviously not in a tournament). See which you like more of that works. Also I'm guessing that you're using the 98 18x20, yes? If so, that racquet has more control, but really lacks on spin. I think that if you see Andy's review of the 2015 blades, it's a great reflection to the 2013 ones. The speed pro will offer more spin. But again, it is your choice so see for yourself would be the best way. Good luck.