The 6740 doesn't have a compression spring.
The 6740 doesn't have a compression spring.
You should be confused ..... your 6740 pedal doesn't have a compression spring.

Your Premier 252 does, maybe that's what everyone is referring to. Very few pedals use a compression spring. The Ludwig Speed King is the most well known. Your Premier is another. The Tama 6750 & 6755 are (as I mentioned in post #5), and the Trick Pro 1-V. They work by squeezed rather than expanded a spring, which pushes back on the footboard to provide rebound. Your foot stroke compresses the spring, as you power the beater towards the head, and the spring rebounds by returning to it's non-compressed state.