Inspired by a video posted by Ernest about a DonnyFL moderator mod on how to make it even more effective, I did a similar mod to the factory FX stackable moderator that many choose to just discard or sell.
I used some standard Walmart hair curlers and a soft foam piece. The foam is about 3/4 thick and will be compressed against the inside walls of the moderator. Cut it to size and wrap around the black hair curler. Cut the black curler to size if necessary (depends how many stacks make up your moderator). You may not need the larger spring (inside the pink curler) but I used it at the discharge end of the moderator to keep everything snug inside and to help press out the foam against the inside wall.
I was not able to test it yet, but it basically does the same thing Ernest did in his video.
I used some standard Walmart hair curlers and a soft foam piece. The foam is about 3/4 thick and will be compressed against the inside walls of the moderator. Cut it to size and wrap around the black hair curler. Cut the black curler to size if necessary (depends how many stacks make up your moderator). You may not need the larger spring (inside the pink curler) but I used it at the discharge end of the moderator to keep everything snug inside and to help press out the foam against the inside wall.
I was not able to test it yet, but it basically does the same thing Ernest did in his video.