Six in one, half a dozen in the other, as far as the silencing products go.

If your bow has been shot a lot, the problem might not be with the silencers. The more high-tech the bows, sights, rests, and other accessories are becoming, the more prone they are to have problems. Normal wear and tear, that is hardley noticible, can cause a surprising amount of noise. Therefore, your silencers might be working but your bow is just getting louder.