My TT+ (with 2 line) arrived today and I took it out tonight and...I LOVE IT! I had the best time out there playing. I'm know it will make me better, let me have fun while getting in shape, and be a lot of fun to use on a regular basis. I have a question for anyone that owns or has used one--after I used it for a while I brought it in and plugged in the charger. After a short while the light changed from red to redish-green and finally to bright green. But, when I touched it I noticed that the light color can be changed by simply spinning the plug that goes into the TT. In other words, all you have to do is wiggle the cord and the light changes from deep red to bright green. I remember on my batting tutor (same company's baseball machine) it would change color for a second if you wiggled it but would always go back to the same color after you let the cord go. If I twist the plug in the TT while it's plugged in I can actually make it stay a different color. I'm probably going to call Sports Tutor tomorrow but I wanted to see if anyone has had this problem or has any thoughts on it. One more thing--balls. I went and bought some cheap Wilson pressureless balls and also used my older, flat pressurized balls of assorted brands. I MUCH prefer the pressurized balls, even if they are flat. The change in ball position depending on what type of ball, how flat it was, etc. was VERY minimal on my machine (ie-whether it has a DEAD flat ball or a new pressureless, all throws were basically the same). I didn't really care for how it felt hitting the pressureless balls. Some of you had said it feels like hitting rocks and I must admit I thought "these guys are much more advanced and sensitive to things that I would never notice" but I must apologize, you guys were right. I also noticed that the new balls didn't bounce any better than the flat balls. That's just my take on things from a hundred hits--it may change and also, it may be due to the fact that I just had some Wilson balls I got from Wal-Mart and not high tech pressureless or Tretorn--I'll have to try those and see if they are any different. Thanks for all the help!