I posted this on another thread but it has since been buried and hard to find. I'm starting this thread for people out there who are looking for a machine which has just burst on the scene. Pictures can be found @ http://mongo.myphotoalbum.com/slides...aign=slideshow I'm having fun w/ it and suggest that if you're interested to investigate it further. Stringing machines are like shoes, you have to make sure they fit. My experiences w/ machines are limited to 2 . . . both table tops. One experience not so good the other good so far. I'm not qualified to review or evaluate a machine so I asked a friend of mine who is a professional stringer to come over to my home and give my new new machine a look. His approach to everything is quite scientific and methodical. He took copious notes promising me a “full report”. He stayed all day and after testing, stringing and talking, he said he would email me his opinions and observations. What follows is that email. I offer it for what it’s worth, which I believe is quite valuable. Although he doesn’t brag about his past experiences, here is a bit of his background: PS has been stringing professionally since the mid 70’s, trained by the distributors of Technifiber, to work on their stringing team at the Open and other tour events. He did this for a number of years until he tied of it and opened a freestanding pro specialty shop, which he still runs today. He has told me that he strings personally over 2500 rackets a year. I know he has worked on various projects for numerous companies. He often refers to himself as a ”tech head”. I agree. There isn’t much about strings and equipment he doesn’t know. AT FIRST GLANCE: For a tabletop machine, it is well constructed and utilizes popular mounting and clamp technologies. The bright red paint job is well done and the tool tray is well placed and large enough for what you need when you need it. The tension head incorporates a standard parallel jaw system found on just about every machine I’ve ever used. The action is smooth and firm without crushing the string. The tensioning unit, for the lack of a better description, in which the jaw resides, is unique. The lead is a diablo type devise that I have never seen before, although its function is the same. Its shape has been modified into a cam shape rather than a cylinder guiding the string into the jaws perfectly. The diablo and jaws are securely attached to a rather odd shaped piece, also cam shaped. I believe that this “brains” of the tensioning system. EVALUATION: Mounting a racquet is simple. The articulated arms move smoothly and hold the racquet securely, as I would expect. The throat and head mounts are well padded and should cause no damage to the inside of the hoop. The turntable has a solid feel and rotated effortlessly as I am accustomed to. The double action clamps are fine quality of appropriate weight and operate with a “positive” feel when engaged both at the head and the base. Upon examination of the clamps heads, I found them to be coated with “diamond” dust that will reduce slippage when adjusted to the correct closing distance. I placed a piece of VS Team in the clamp to see if it would mare or scare the string. It did not to either. I also tried this with the Diablo and tension jaws with the same result. I then mounted my calibrators. I use two different kinds; my tried and true Ektelon barrel spring loaded and an electronic model I fashioned from a fish scale. Each has served me well and although a bit redundant, I never leave anything to chance. Mounting the calibrators proved to be a bit interesting since there is not table brake. More about this later. I did two separate sets of weight tests, one in pounds and one in kilos. Setting at 50, 60 and 65 pounds then 25, 29, and 31 kilos. I released the arm and positioned it parallel to the floor using a small carpenters bubble level. As I expected this took a bit of doing to get the level perfect on all six tests. The results were as expected and also a bit surprising. The tensions were less than .2 ounces + or - and under 1 gram of being dead on. I repeated this 3 times at each weight to see if the measurements varied. They did not. I did this because I was a bit astounded with the accuracy, since my machine is not that accurate. I then proceeded to vary the arm angle from 40 to 10 degrees above and below parallel using a protractor. The results were the same; a degree of accuracy I cannot achieve on my machine. Now I wanted to see how that translated into string bed stiffness on a finished racquet. I mounted my Wilson Prostaff 6.1 and started stringing using my preferred Wilson NXT Tour 17 at 62 pounds. Since I’m not used to a tabletop machine, I wasn’t sure what to expect, but after a few minutes of getting used to the way the machine works, I finished and took it to my RDC. The finished racquet ended up nearly identical to the results I get from my Prince 5000. It was within 5 units of my usual readings. CONCLUSION: Whatever this tensioning system is, it’s truly different. It’s easy to use and most importantly, it’s accurate at some extreme angles. Having seen the testing results from drop weight machines, I know that the tension is dependent upon the arm’s angle and can vary greatly from pull to pull if the stringer is not focused on the angle. As far as comparing the Quantum TT to other machines in the same category, I don’t know since I don’t and wouldn’t use them, including this one, in a pro shop environment. I was disappointed that it did not have a table brake and wondered how a non-professional stringer would make out trying to string a Prince 03 or a Wilson Rollers, if any are still around. I see that Laserfibre has included 2 “boomerangs” for the 03’s. and the Rollers can be done by holding the racquet grip while tensioning and clamping. I still would like to see a brake. There are also two “H” adaptors included for racquets with very thin/narrow bridges, such as the Pure Drive and K 6.1 Tour. Although the mounting system would hold these racquets securely, the “H” adaptors would distribute the force over a greater area reducing the stress on the hoop. Overall, although not a Pro Shop machine, the home stringer might be well advised to check this machine out.