Mid balance rackets are neutral and offer a good amount of power and control.

Head heavy rackets are normally found on lightweight rackets, they give more power than mid balanced rackets.

HEAD SIZE:

Larger head rackets give nore power and are also more forgiving for shots that don't hit the sweet spot.

Smaller head size rackets tend to give more control but have a smaller sweet spot meaning power can be sacrificed.

STRINGS:

Tighter racket strings give more control, looser racket strings give more power.