Rafaboy
Semi-Pro
also agree with this, perfection of fundamentals essential to consistency.Rafa is already a 7.0+ tour level player so you have a long ways to go! I don't think he uses this particular racquet but I like it so that is that! In order for you to be a 5.0 player; you need to work on your game and fundamentals like serving accuracy, footwork, groundstroke production and timing!
however, also consider equipment limitations eventually becoming counterproductive.
i.g. entry level player can progress satisfactory to a proudl level with a economy beginner racket. but there became a certain point where he's beating dead horse. he may not realize this, until he plays with more advanced racket, which will feel very uncomfortable at first.