I am a big fan of Kasatkina. My style of tennis very similar to hers. I recently bought the TR990 power pro and got it matched to her specs. This turned out to be not so easy. I bought three and they were all about 14 sw pts under spec. According to Decathlon they are 280 sw unstrung. But mine were 296-297 sw strung (with 1.30mm factory poly). The shop customized one of them for me and put 6 grams of lead under the bumper. The one I have is now 301gr, 32.3b, 286,5sw unstrung. Swingweight strung is 314.
Before this I played with speed mp 2022, the specs of these change because I keep tinkering with lead. Important thing is that all of them have a higher swingweight: 322-330. Over 330 doesnt help my play, but never had an issue under it, 322 feels light sometimes and I always had instability problems with my older speeds that were under 320.
Back to the Artengo. I played 3 sessions so far and I can say that this stick gives so much for free. The stability, comfort and feel is a bit worse than the speeds, but the power, spin and ease of play is alot better, its kind of addicting. I need to get used to the lighter feel but I think once dialed in it could help. My main focus with my tennis is winning more and improving my rating. I feel like a powerful 300 gram racket will save me energy and enable me to play my tennis: play long rallies on clay, hit topspin, make my opponent their life miserable. I do hope the stiffness is not going to be an issue and that the stability will be fine when I get back to matches and play vs better opponents (its difficult to find decent opponents in my town).
The first string I tried is Kasatkina her old string: TF ice code at 22.5kg. I can imagine this setup being too powerful for some. It's always difficult to recommend powerful tweeners to people. I would say beginner and intermediate players play better with powerful rackets. But some of them always complain its too powerful: 'rocket launcher', 'no control'. I can almost say for sure that unless you play old school, very flat, that these rackets are not too powerful. I think its more often their lack of modern swing and relaxtion in the arm to be able to play with enough spin. Kasatkina has said it very well, her hand controls the ball, so she doesnt need the control from the racket. I have the same feeling. If you need a control racket to keep the ball in play and you are like 4.0 or below its not the racket fault I think. Anyway, excuse me for the big rant.
I just wanted to share this is a great racket so far. I hope Decathlon is going to keep making this racket for a long time. Maybe fix quality control on the swingweight a bit. 3 rackets were all way too low, so keep that in mind that you might need to add some lead.