I don't use silencers at all anymore, not even on the skinny 450+, FF, or D 97. All you can hear is the whoosh of the string, or the arm guard contact at times. The Dacron is lower pitched a bit, so sometimes I think it's even quieter.
You will usually go up a spine grouping.
One nice thing about the quiet Hill style bow is when shooting alert animals, they don't really react to the shot noise and bolt, or lack of noise. I've shot a lot of keyed up Michigan deer and NEVER had one jump the string.