Just want to add some personal experience to this topic, which might also be controversial: not all all-wood blades are provides better feeling or better control.
A few years ago I bought a Stiga Maplewood NCT V since it was going out of production, and my coach has been using one for years, so I wanted to test it out. It felt hard AF, so I gave it to a co-worker who also uses one and want to have a backup blade. And I recently tried out two Koki Niwa Wood 90th anniversary edition blades, and comparing them to my w968 and the newly arrived SDC Valkyrie, I would say it feels harder and not as controllable. But if you search online you'll see most people saying how good Stiga Maplewood NCT V is for looping, how the flex of the blade spins the ball and cataples it. And just look at how Koki Niwa plays, he switched back to the all wood blade for a reason. But why does it contradicts what I feel when I tried the blade.
Before I continue, this is how I define a blade with perfect control: landing the ball on the spot with the spin and speed the player wanted, all the time, with minimal effort.
Most all-wood blades have lower top speeds compared to most composite blades, so if you want to hit a ball to a spot with the same speed you want, you'll have to put in more effort (turning your body, tensing up your arms and fingers, etc.), and with more effort you lose more and more control of your body (over tension, bad form, etc.). But we all know that to achieve the best shots you want your body to be in a "relaxed" form, so do you really have more control with an all-wood blade while trying to hit a powerful shot? I don't think so.
But on the other hand, most all wood blades can produce slower shots much easier than composite blades, because with a composite blade you need your body to be much more precise on the touch, and to be more precise you need to put in more effort, and more effort means less control.
IMO, the "control" aspect of a blade is not an objective property, it's more of a subjective feedback of the player using it. So what I'm trying to say is you need to know what style you prefer playing, is it "spin and location" or "speed and power"? You need to choose the correct equipment to match your play style, and the one that matches the best is the one that has the most control, for you.
So, like @NDH said above "If you want to improve, pick a set up and get used to it - Don't overthink the rubbers/blades (within reason), and focus on training." Also adding to that, know your play style, then pick your setup accordingly.
Btw, I've seen this mentioned in a lot of Chinese forums, and videos on Bilibili: faster blades pairs with slower rubbers, and slower blades pairs with faster rubbers. Or what I call it: balance.
