The Feed Popper is one of the toughest plugs you will ever see. It is so solid it can be used for GT's and Barracuda in the tropics. It is a silent lure but has a very loud pop sound when retrieved correctly.
If you are after bass with the lure I personally find it best to work it slowly, letting the lure rest for a few seconds and then a good jerk of the rod to make it pop loudly. I do like it in fairly choppy seas, when there is a lot of surface chop, or a good swell.