However i didn't really get the silent parts. Nothing to really jump out at me. I like your bass riffs though, and the drums are pretty good.
the track was made to be as it was, stop & go delay usage. some parts that seemed to drag on, were actually part of the delay process in timing of each riff that was used.
also, if you turned up the volume enough, it would have an echo effect in the track that kinda lingers in the track. that was intentional.