I've been reading a lot about why you should have a heavy racket and why you should have a lighter racket. A lot of the information I read is very theoretical and geared towards marketing. We all know that theories and marketing is about convincing people to spend their money on new rackets. I'm asking for people with experience to chime in and provide me with some information, insights, and advice on the benefits of having a heavy and/or light racket? Whatever information you can provide about the pros and cons of playing with a heavy versus light racket and does it matter if the heavy or light racket is stiff or flexible? Also, is a heavy or light racket better for beginners and what do you do when you improve? Move to a different racket based on weight? Why do the pros add lead tape and why do we even need to customize our rackets if technique, conditioning, and footwork, ultimately will determine how well we play? I know there is so much information out there and to me, it's really confusing and I wish that I can find it simplified (if this is indeed even possible). Thanks for any information, insights, and advice.