They’re pretty opposite in most regards. I used the RF97 for over a year so I’m more familiar than the gravity, which I demoed for a week and played 2 matches with. The RF97 is optimized towards aggressive all court tennis in the modern game. The HL balance, slight polarization, launch angle, and open string pattern all encourage high rhs modern strokes, while the power, stiffness, and swingweight of the frame allow for you to focus on technique and spin and not have to worry about generating enough pace. There’s enough stability for blocking back serves and big shots, but this racquet isn’t made for defensive play styles. It’s made so that the player can generate rhs and spin, while the stiffness and power of the racquet provide pace, until the player has worked the point to get a the ball they want to attack. If you play aggressive tennis and have good technique it’s one of the best racquets out currently. I only went away from it because I’m not playing as much as I used to, but I’ll definitely switch back as soon as I’m able to play more frequently.
The gravity pro isn’t as specialized as the RF97. If I had to specify a play style it’s geared toward I’d say defensive baseliner, but it’s more of a jack of all trades master of none. It has an 18x20 string pattern so the launch angle is lower, spin is slightly less, and accuracy is slightly better. The RA is lower so there’s less shock transmitted to the arm and less power transmitted to the ball. Those two characteristics coupled together mean that at a given RHS the RF97 can generate more power and spin, all other things being equal. For me, this translated into not being able to play as aggressively from a neutral or disadvantaged situation in points because I wasn’t able to get the same level of spin on my shots at a given pace, so the margin for error was lower. I did find that I was able to compensate somewhat by going for lower trajectory shots that recruited less spin control, but this again resulted in a lower margin for error. To me it seemed like the gravity pro would work best for someone who wins with depth and placement from the baseline, slowly building a point through small advantages.
So to summarize, the RF97 is an aggressive all court players racquet where it provides the power and the user provides the spin control, and the Gravity Pro is better for players who like to build points through depth and placement, winning through building up small advantages and consistently defending by returning to a safe target that the opponent can’t attack.
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