I am in my early 40s. I have been playing tennis since I was a junior and as an adult have always played the 4.5 level. The last two years my kids have played so many tournaments that I have not played as much. I switched to a Babolat Pure Drive GT and I like the racket. It is lighter than my kfactor 6.1 but my elbow does not like it. I am trying to play with my 6.1 again but it is heavy as a log. I find that after a set or two it is difficult to swing There is just nothing left in the arm. I am 6'2" so i am not a small person. Do you think this racket is now too heavy for me or I am just not in shape to hit with it. I have only played with it for about 2 weeks hitting 6 times or so. Ground strokes have good power but the serve has not caught up yet. This is a modified post of some earlier questions I posted about this. I just have more feedback to give now.