Comments: Using in a hybrid, Babolat RPM Power in mains with Tecnifibre Multifeel in a Blade v8. It is a comfortable string with similar power to Volkl Cyclone, and a little more crisp. I would still say it's a slightly muted poly. Good control and spin for the power - still not the best in either category. I do like it though and it might just need a cross like prince synthetic to offer a little better slide and more crisp response. I'd still put my favorites above it, which are Technifibre Ice Code, Volkl Cyclone, or Luxilon 4G. 
From: Jason Finnegan, Shoreham, NY, 9/19/21

Comments: Playing tennis takes on a new dimension with RPM Power. It's the greatest evolution in tennis strings after the appearance of the gut and co-polyester. It's a type C co-polyester that does not require pre-stretching, it is stretched at the factory, and whose maximum recommended tension is 51 pounds, 55 pounds has Thiem, but he's a professional. It has a high playability and maintains tension excellently. It allows for very high effects, facilitating topspin and underspin. The contact and connection with the ball is maximum. The gut and nylon strings also needed to be repositioned with the fingers, and it wasn't a problem; what's more, in some cases, it's a great way to stay focused during points. Dominic Thiem really uses it, and we are talking about a tennis player who has the best Babolat technology at his disposal. He switched from gut with RPM Blast, then colored versions of the same string, and finally opted to use experimental HEAD string to get his victory at Indian Wells, defeating Federer. After that, he gave the step to RPM Power and has not taken a step back, obtaining the best sporting successes from him and his first Grand Slam. That string does not need to be edged to produce the highest Revolutions Per Minute, as can be seen in Thiem's beastly way of powering the ball now, who actually uses that string, the fans should be grateful for that. I have visited the Babolat string factory and had the string used by Nadal in my hand. When it was yellow, he used Babolat Duralast, Moya also in another color. On the yellow string, it was printed in black Pro Hurricane Nadal. That yellow string had no edges and produced a beastly effect, thanks to the fact that the polyester grabs the ball on contact and makes it rise very easily. The problem is that it loses tension and playability in a very few minutes, with the aggravation that it is very hard and causes shoulder injuries in the long run, Nadal and Moya were affected. Later another black string was created for Nadal, but that is not RPM Blast. That string of Rafa, has RPM Blast 1.35mm written in white and has no edges, it is cylindrical and doesn't have eight faces. That black string is no longer made of polyester, but of co-polyester, which is a material that reaches more speed, and arm-friendly. According to the technicians who make Babolat strings, using eight faces on textured strings is the best option. Profiles with fewer edges, 4-sided or 5-sided, facilitates the topspin effect for amateurs, but sacrificing precision. It is because those geometries, four or five faces, at the time of stringing can be more or less twisted. This greater or lesser twist can make the edges more alive or less in some areas of the stringbed. Those textured strings are only valid for amateurs, but the professional cannot depend on these random variables.
From: Noelia, 3/22/21

Comments: First of all, I have to rectify. I have to admit that I was wrong, and that this string I could not assess correctly, because at the time of testing it, no one alerted me to two fundamental factors, it does not require pretension and its optimal tension is low. To begin, I have to recognize that it is the most advanced string that I have tried in recent times. Power with the maximum of control and precision. The problem is that when you buy it, nobody tells you that the string is pre-tensioned and that its recommended tension is between 44 and 49 pounds.I stringed it with a pre-stretch of 10% and at 57 pounds. Obviously not the best combination.A week ago I gave this string a second chance and I was surprised by its exquisiteness when transmitting the orders I give to the ball. It is a monofilament with all the advantages of this type of co-polyester string, but with the grip offered by multifilament or gut strings. As a senior player, I never finished adapting to co-polyester monofilament strings, since I have always felt that the ball slips and nuances are lost, and that those that come with geometric profiles produce imprecision.This great string introduces you to the high-speed game required by today's tennis, while still allowing for massive grip and spin. With this string I have returned to play with joy and creativity, while after each training session there is no injury.I stopped playing with Wilson Revolve two weeks ago, because in top-flight tournaments, young players will beat you up if you don't add speed. I tried playing with Luxilon Adrenaline 1.30 Century, but after each session my back, elbow and shoulder were very damaged. I am a fourteen-year television tennis commentator, senior individual state champion and national doubles champion. Last season, I won two ITF seniors and a finalist.
From: Eduardo, 12/21/20

Comments: Making a permanent change from RPM Blast to these at 17 gauge. Ball pocketing at lower tensions, power, and spin, three in one wonder.
From: Sammy, 6/16/20

Comments: Absolutely average string. Nothing to hate, but nothing to rave about. For the money, there are much better strings out there in my opinion. I would play with Solinco Confidential at a fraction of the cost. I strung this string in a Head Pro Stock TGT339 Speed MP 16x19, 362g, with a 340 swingweight.
From: Sean,4/22/20

Comments: I really like this string. I have it at 50 pounds in my Wilson Clash 100. I was using Tecnifibre Ice Code at 52 pounds and thought I found the perfect string. It is great, but I like the RPM Power a bit more. Great spin, control, and nice pocketing. These two strings are my favorite by far. After eight hours of doubles and drill, tension seems to be holding. I'll have to see how it holds tension into weeks 2 and 3. I like the brown color as well. Very different, almost bronze. Looks good in the Clash. I can't wait for the playtesters reviews of the string.
From: Vlad, 3/8/20