So the newer Topspin strings have been out for quite a while already, and there is not much review on them so i thought i would write one up. I have only tried the sub 100 dollar reel strings, which are Topspin Cyber blue, black, red and flash, as i cannot yet afford the pentagonal strings. I've been playign with the newer ones for about 3 months, and i have been playing with blue and flash for a year. Here is a short review of the strings so far (I'll update later when i get more playtime, and I'll eventually try out the more expensive strings.) Cyber Flash: Very tinny, i hated this string. Absolutely no feel, and I've tried it in i think 3 different rackets, and each time the results sucked. Only good thing about it is the durability and the cost, other than that, not really much else unless you just pound the ball. Cyber Red: really Crisp string like a cross between the black and blue, but less comfortable and less powerful than the blue. However it is a lot less stiff than the black. It actually feels a little bit like the big ace. This one is my favorite, I've used the blue for a year, and I'm thinking about changing over to this one. Cyber Black: Really solid string, but pretty stiff too. I haven't had a problem with all of the other strings at 60 lbs, but for this one i actually have to string at a lower tension. Will get back to this after i lower it, I'll try 54. Cyber blue: Extremely comfortable string, lots of power compared to the other three, however it does feel a bit mushy. This is my favorite and my main string though, I always end up comign to to it.