Received string yesterday. Strung last night. No problems stringing. String was neither especially stretchy or stiff during stringing. Definitely a 16g string. Racquet: Volkl PB10 Mid (16 x 19) Tension: Mains 53, Crosses 50 I have only hit with multis in these frames twice. Demo frame had NXT 16g. New frames were strung with Gripper 16g by the vendor. I currently use Spiral Flex 16g in one practice frame and a gut/poly hybrid 17g in my match frame. I hit groundstrokes with my 4.5 practice partner for 90 minutes this morning. The test string reminds me very much of the two multis experienced in the past (NXT and Gripper): Very control oriented, only powerful when hit in the middle of the sweet spot, and only average in terms of spin generation. Directional control was good with this string but I was not getting the depth I am used to with my two strings of choice. I really felt like I was putting a lot more energy into my shots than normal, only to have the ball land a couple of feet behind the service line. Anytime I was late or rushed, the ball either ended up in the net or landed a couple of feet inside the service line. I find the Spiral Flex the be more crisp and slightly more powerful than this test string. Both are equal in terms of spin potential. At only $3.00 per set for Spiral Flex, I am not convinced this is worth substantially more based on only one hour of hitting thus far. For the final 30 minutes of hitting today, I grabbed my match frame strung with Pacific Classic Gut/Volkl V-Pro 17g. The difference was dramatic. Easily twice the rpms on groundstrokes and much better depth. Much larger feeling sweet spot also. On a more positive note, the test string was not harsh and exhibited very little movement for the first hour of hitting. I plan to hit with it a couple more times over the long weekend and will post regarding to its durability, serve, and volley characteristics at that time.