I shoot a 270 grain arrow and pull 70#
Not even knowing what you shoot I am willing to bet my bow that mine is quieter than yours!

and NO it does not have a lot of dampening rubber on it

a heavy weak spined arrow will do the same dammage as a light weak spined arrow will.
if you want to debate this subject I have years of study and research on this very subject but then you can archive some old posts here and over at archery talk.

and straightarrow the reasonwe go to such great lengths is to be more accurate

I cant convince anyone over the internet but in person 3 arrows from 25 50 and 75 yardswill

however I will tell you that it is not in the best intrest of your particular brand of equipment to shoot such light arrows but the equipmentI useis Designed,warranted and built to withstand lighter than 5 GN per pound arrows.
but that is another topic so I will stop here