Comments: Great string. Played with all the popular polys (all the Luxilons, RPM, Black Code, Red Code, etc.) and this is my favorite. It has a deader feel but when you really want to rip into the ball you get rewarded with some great pop and spin. For the price, I think it's the best poly out there.
From: Drew, 5/13

Comments: I tried this string based on all the fantastic reviews and while it didn't quite live up to what I was expecting, it is still a great string. I am after a softer poly and have been using Sonic Pro 17 in a new Graphene Speed Pro. I've got it strung at 54lbs after finding it was too powerful for my style of play at 48 lbs and 52 lbs. It plays slightly stiffer than the Sonic Pro but definitely has more control. Spin seems to be about the same which I wasn't expecting given the Edge should be better. One great thing compared to Sonic Pro is that it last longer (maybe 15 hours of hard hitting compared to 10) before starting to die. And when it does die, it doesn't goes stiff and turn into a trampoline like Sonic Pro did.
From: Mick, 4/13

Comments: I played with a full bed of Head Sonic Pro Edge 16 at 56/54.lbs. When playing indoors, this string gives you heavy shots but comes up a little short in depth. It is difficult to finesse the ball on short angles, you really have to rip into the ball if you want to get short angles on your forehand and backhand. If you rip the ball, you will get rewarded, but it takes time to get used to the fact that you can hit the ball hard and yet it stays in. Serving is great with this string, as it is accurate and heavy, the touch on volleys is average, slice is very good for a poly. Now playing outdoor on clay is a little different, you really have to play with a lower tension then what you are accustomed to in order to get depth on your shots. The overall tension remains pretty good and stability is good. I have been playing with it for 2 weeks and have not noticed any changes yet. It still is rough on my arm when you play, so anyone with any tennis elbow history should proceed with caution. All in all a very good string, 8 out of 10 and a perfect string for players who like to rip the ball and not worry about it losing control or for players who want to play heavy topspin balls. Now I just need to find a nice softer cross string to combine with the Sonic Pro Edge.
From: Stefano, 4/13

Comments: I like this stuff. I liked the original Sonic Pro, but felt sometimes it had too much pop once the strings broke in. This new Edge string has excellent control with a more dead feeling. Not dead like with other polys, but just enough. Touch shots are phenomenal and serves are a breeze. I must say I did not notice much tension loss after a week now. Durability seems to be excellent. Overall, a great string for big hitters looking for a bit more control. I have it strung at 55 lbs in a Head Graphene Speed Pro. I love it and will most likely be buying a reel.
From: Anon, 1/13