I wanted to use banana connectors from my receiver into the surround sound outlets instead of stripping wires. I think it's cleaner and easier to move things around in the future. The Guardian plugs will work if you want to strip your wires. However, I discovered the surround sound wires going into the Guardian plugs were put too far into the screw and prohibited the banana plugs from being fully inserted. It's a simple fix to pull the face plate out and pull the surround sound wires out a bit to fit the banana plugs.
If you don't want to mess with this, then ask your guardian rep to make sure you can fully insert the plugs.