Rafa Nadal

[LP]

This is far better LP.

https://tt.tennis-warehouse.com/index.ph...er.473525/

There's a good summation by a poster called ChicagoJack in the middle of the thread....

I reckon you're related to a poster called LeeD 

And note the link to a test that the once, almost great, Scud did back when....

Except that many of the claims in the blog thread are completely wrong.

The proponents of bigger heads assume the coefficient of restitution is constant when you change the racquet head size to deliver a bigger amplitude bounce in the same time. But restitution is a time based dynamic effect. A bigger racquet may have more deflection/deformation, but that will happen at a cost, the restitution happens over a longer time interval meaning it's less energetic, and also there is more energy lost in harmonics due to the larger available area. The trampoline effect, the bigger the trampoline, the slower it recovers!

However spin might be helped by bigger racquets, a feature unrelated to power transfer. This is because a lower COR allows the ball to remain in contact with strings longer, which is one of the critical features when trying to imparting spin. Getting the balance right between COR and string tension would be critical to maximise spin.

It's pretty basic really.

You shouldn't trust links and debates on sites connected to commercial enterprises for technical explanations, they nearly always spin he data to suit their product push.

Better to go to a more reputable source of the info; http://www.physics.usyd.edu.au/~cross/tennis.html