I already read that thread.
Like I said, I get no double hits when using my right foot on the slave pedal. For whatever reason my master pedal is insanely bouncy and I don't know how to fix it. I already tried the spring tension.
If I pull both beaters back and let them go the master pedal bounces at least 2.5x as long as the slave pedal until they return to the stopped position. I am pretty sure that is what is causing the double taps on the master pedal, but like I said I adjusted the spring tension way down and it did not make a difference in the double tap nor in the amount of bounce it had compared to the slave pedal.
To be honest, the master pedal is almost unplayable and I have no idea how to fix it.