Sorry to interrupt but I'd love to play a Babolat. Haven't tried Aero (should I? what's the main difference between PD and aero, I can't demo aero!) but tried PD lite and regular. Unlike you guys, I'm a recreational player, have been playing in the summer only for quite a few years so I should play better but I'm just so-so, no serious club player wants to play with me as a partner in doubles (and singles duh). My game depends on the opponents, I'm often missing sweetspot, you name it. I loved the pure drive but heard "oh, i'm a guy and play 295g and you - a female want to 300? it's too much". maybe he's right, after all I demoed it for a few minutes only. I so wish there was a 285 g version of it.
About the STIFFNESS. It felt stiff. Stable but a little too stiff. How to string it/make it less stiff? So far I have no health issues *knocks on wood*. Or would I get used to it?
what is your playing style? that's the question
Pure Aero - it's a spin monster, that has quite a lot of power. Control comes mostly from spin.
Pure Drive - it's a power monster, yet has a lot of spin
Pure Strike - it's in the middle ground, not as powerful as PD, not as much spin as PA, yet a more versatile frame, allowing for more directional control as well for easier volley than the previous 2, with thinner beam
If your game is centered around hitting groundies all day long, as hard as you can, with as much spin as you can, then PA might be your best friend.
Though Thiem is doing quite the same with Pure Strike.
If you want to play the "all court" style, then PA / PD might help you in some areas like service & groundies, yet be a tad difficult for other areas like volley for example.
And no, volley is not impossible with these 2 frames, it's just the thing that there are better options for volley.
From Babolat range, you probably shall have a closer look at Pure Strike range, or PA VS, PD VS.
Also, if you prefer to hit flat shots, then PA / PD, might not help you with that, you would probably be better with Pure Strike range, or PA VS, PD VS.
As for stiffness.
It's not black and white.
If you search the internet, you'll see that some sources actually do recommend stiffer rackets.
Long story made short, there are many variables, and probably nobody knows it all.
You can try playing with whatever racket you like, if you notice pain / discomfort, occurring repeatedly -> consider switching to a different frame. If not -> enjoy the game.