I'm shooting cabela's carbon hunter arrows. My arrow tip and all weighs 414 grains at 60lbs?
My bow is a 70# bow I haven't cranked it down because I thoght it would be louder.
Well which to heck is it set at... 60 or 70. It makes a big difference.
The retaining spring on your Kwickee Kwiver bracket will vibrate drastically even without the quiver in place, maybe more than normal with the quiver removed. Take out the screw and slip some moleskin under it, the retaining clip spring steel. With the quiver still attached, well you'll get all sorts of noise off the arrows and the quiver.
IF your bow is at 60 and you jack it up it may well change your arrow spine enough to make a big difference. But then, you're not sure what it's set at.