with the stock rubber on my general, would always turn my dloop or my peep, i think due to the V shape, with the new Bowjax rubber, no more turning. getting the stock one out was TOUGH.
I have to agree with the things hmthtrfan said. The new stopper is definately quieter. And no more loop turning. The stock stopper must have been glued in ,but it wasn't too hard to get out.