What wilson racket of today closest represents the old Wilson Hammer 6.4 Power Holes racket?

OK i have only been playing tennis for a few months I first brought a wilson roger federer racket but I found the vibration was to over powering for topspin and etc so I started playing with my friends spare racket which is a 6 year old Wilson Hammer 6.4 Power Holes. since I have been using her one its amazing the difference has made to control ability, topspin forehand and just controlled strokes etc, I don't over hit the ball nearly as much and when I put into practise what I have learnt in coaching it's finally starting to happen with this racket more then any others I have tried out. obviously I can't go ahead and buy this as it's out of circulation due to the age of the racket. but other Wilson racket is closest model? I know there are a few Wilson hammer racket's on the market but I have absolutely no idea what if any of these models would be representative of the power holes 6.4 so please if a tennis know all could help me out I would be most grateful