Hey Everyone, I recently contacted PolyStar Germany and convinced them to send me several demo sets. I have heard good things about these strings and the brand itself. I was wondering if I could get some more input from everyone else. Like what tension I should use. Also, I heard this string is oily? Info about equipment and my game: Head IG Prestige MP - Currently using Topspin Cyber Blue 1.30 at 59lbs I hit with topspin off both wings and have a strong first serve and heavily kicked second. What i'm looking for is something that benefits all aspects of my game. I cannot volley with topspin cyber blue for my life. But I can volley great with BB Alu with amazing efficacy. So I can tell its definitely a string issue for me. I think it might be that cyber blue is too soft and plush. Alu power is more crisp and stiff. I plan on putting Turbo in the mains at 52lbs and Energy in the crosses at 49lbs. Let me know what you think! Thanks! Once I get the string i'd be happy to post my own review about it.