Floor Mat

[lakeroadster]

For those of you running rubber factory style floor mats,

A) Did you install sound deadener under it?

B) Where did you buy your mat and are you happy with the quality?
C) Does your mat lock into the factory floor mounted studs?

In the past, on cars I have restored / refurbished, I have always used the factory sound deadener pre-cut panels like shown below. It is made from heavy tar like material.