Gear Designs

1st Design:

Advantages:

• It insures more safety than the push-pull dynamo-meter since the dynamo-meter only insures safety for a limited amount of time and that is when it's measured, however the x-ray insures safety all the time.
• The x-ray is very small and will cause no harm to the player.
• The design is simpler and easier to put on and use.

Disadvantages:

• It requires being able to identify the bones. 
• It is electric, so the material for the shin guards should be an electric consumer.
• Very expensive and has to be ordered by shipping.

2nd Design:

Advantages:

• Easier to use.
• Doesn't Require special skill.
• Shows more team spirit because of the logo appearing more than the other shin guards.

Disadvantages:

• Dynamo-meter needs special care and is easier to break which itself would cause injuries.
• Only insures safety for a limited amount of time.
• Harder to put on.
• Hard to find, ordered.

Which one will I choose?

I will choose the 1st design since it has less disadvantages than the 2nd design. Also, shin guards are used to insure safety and there is a possibility that the 2nd design would cause more harm to the player, also the 1st design has a solution for it's problems but the 2nd doesn't.