Lexicon

Smash Attack
Smash Attack is a style of Beyblade attack that focuses on hitting the opposing Beyblade with enough force to deplete their spin completely or knock them out of the stadium.

Points of Pressure
One of the fundamentals of physics is that a finer point applies more pressure than a broad point applied with the same force. Wikipedia puts it as this:

"As an example of varying pressures, a finger can be pressed against a wall without making any lasting impression; however, the same finger pushing a thumbtack can easily damage the wall. Although the force applied to the surface is the same, the thumbtack applies more pressure because the point concentrates that force into a smaller area."

This is applied to Beyblade for Smash Attack. Essentially, the finer the point of contact on the Beyblade, the more pressure is applied.

Movement Speed
Smash Attack utilizes the entire Beyblade as one large attacking point; therefore, it is important to ensure that the Beyblade is moving as quickly as possible. There are three aspects of the Beyblade that need to be focused on in order to ensure fast movement speed.

Tip
The tip of the Beyblade is the most important. To get the highest movement speed possible, flat tips are a necessity. You can also try using a rubber tip to increase speed, but its controllability depends on the Blader.

Weight
If the Beyblade weighs too much, its movement speed will suffer. The heavier the Beyblade, the more force is required to move it, and the slower it will go. Therefore, you should use a light Fusion Wheel.

Weight Distribution
Focusing the weight towards the center may give a higher spin velocity, but this isn't of much use to most Smash Attack Beyblades. Focusing the weight towards the outside will increase the movement speed.