Finally...
The Chairman3's review of EcoSpin
Tension(s) used for playtest: 48lbs
Regular string set up: Many, many different strings, but two mains are PT Strike 1.20 and Hawk Power
Racquet used for test: Solinco Whiteout 18x20 with leather grip and 5g buttcap
Control/Power of test string: For control, it was decent, the string has a somewhat stiffer response or feel but not in the way of Big Banger or 4G where it really controls and deadens the ball. It has a somewhat livelier response for how stiff it feels. The response is pretty similar to EcoPower, honestly. Control primarily comes from spin generation instead of stiffness. Control was decent though and it had a nice blend of pop and control. Control was mostly predictable throughout its playability too, so while it never had excellent control, it never got launchy and unpredictable either. It strikes a nice balance but the power goes up a bit as tension loss sets in.
Feel (Stiff? Mushy? Muted? Crisp? Comfortable?): It started out very firm and after the first hour loosened up pretty nicely to feel better. Overall, though, it is firm bordering stiff with strongs undertones of stiffness. It also has that plastic-y kind of cheaper feel, which I am not a fan of at all. This is similar to the other Eco strings, save maybe EcoRough which had better feel. But in direct comparison to ALU Spin, the feel of EcoSpin is noticeably different and, for me, worse. As playtime continued on, I began to get hints of harshness (about 5-6 hrs), also subsequent forearm tightness. It could have been a little bit of overuse but seemed noticeably string related. At that point, I quit using it, the risk isn't worth it. It does has a more communicative feel versus being muted, so that is a positive for me. The onset of harshness though is a dangerous game and a detractor.
Spin: This of course is where it shined. The string had a great bite or grab sensation when using it. It definitely dialed up the rpm's and had more spin than its ALU counterpart which is also 5-sided. This just has that easy [lazy] spin where you don't need immense swing speed and it still gives nice spin. Spin was the standout feature and much better than its two Eco counterparts as well. High marks in the spin category.
Playability Duration (did the playability change over time? How? Did it notch and/or stop snapping back into position?): I used for about 6 hrs. As with the other Eco strings, and Lux strings more broadly, it had a good 2-4 hrs. Honestly, the string still produced good spin after tension loss and up to 6 hrs was very usable but that hint of harshness made me quit using it. If it hadn't got slightly harsh feeling and caused forearm tightness, I'd have kept using it to see when spin dropped off. So playability was average for Lux strings and in-line with the other Eco strings. Notching was 25-30 percent from the eyetest, suffice to say, not significant. This is attributable to my flatter style and its inherent stiffness.
Tension findings (would you use the same tension if you strung it again? Why? Why not?): The 48lbs felt tight at first and then settled nicely. I've been on the Whiteout for about 3 months and have only really used 48lbs to keep the string tests consistent. I could definitely see dropping to 46 or 45, in the future. The frame has a firmer layup and I'd like a little more pocketing.
List any additional thoughts (optional): For me, the Eco line has been a bit of a disappointment. Ecospin is probably the best as it is the only one with a significant stand-out feature, which is its spin. EcoRough has a nice feel and I think would probably be good in a hybrid. Ecopower was most disappointing. But that's just my take on the Eco strings having used all three. The problem was highlighted in the comparison I did ( See: String Comparison Database thread I started) of Ecospin and ALU Spin, the Eco strings don't feel premium and Lux is a premium brand.
Additional additional thoughts: Ecospin reminded me alot of Poly Tour Drive. The way it grabbed or bit the ball was very similar. The borderline stiff feel was similar and so was the playability duration. For $6 less, I would say go with the Yonex string.