I currently use the RDX500MP as my one and only racquet. I want to purchase a second racquet and want some advice as to what racquet I should be purchasing as I don't want to purchase exactly the same racquet (I'm not completely comfortable with my current racquet) I find the current racquet excellent on groundstrokes and provides a lot of support for topspin shots, but however I find it a little heavy for me and it affects my ability to counter-attack hard returns (especially on my backhand) and maneuverability. To be honest, I'm not a very consistent hitter so I need all the help I can get. I don't know how to rate myself as a player but I'm not a begginer but below varsity (more than a weekend hitter, getting out 4 or 5 times a week). I want something that is not as light as the Prince O3 Red Series (which is really light in my opinion and lacks power) but not as heavy as the RDX500 and with a lot of maneuverability. Perhaps this is a shot in the dark but I was hoping with all the experience here on this site, that people could make recommendations. I'm interested in trying the Prince O3 blue or silver, what do you think about these racquets? Thanks in advance!