The tubing I referred to attaches from the peep site to the power cables and is a little piece of rubber surgical tubing.

The chubs are the rubber pieces inserted in the string at the top and bottom.

A string suppressor attaches to the back of the riser and stop the string when you shoot.

I would shoot it for a couple of weeks before you do anything to it. That way you will be able to see the difference in the changes you make.