there is a gap that the former sits in and the sub rides up and down like a... nvm Anyways, in a daily sub, this gap is large to accept the tolerances of abuse and most importantly the range of frequencies that the sub must accept at any given time making the movement not as linear as u think it is. In competition, there is usually only 1 note played at a time. Because of this, the gap is smaller to concentrate more force to the sub itself. With a single note being played, the movement is far more linear. Even if competing, choose daily if u wish to use it for musical playback. I may have thrown some terminology around but i got the idea out there anyways.