This is a comparison of the 4 moderators that I own. Been waiting for my new Huggett just purchased from Penchetta to arrive. The moderators are FX 25cal 5 unit stackable, Huggett 25cal, NC 22cal and a Weihrauch 22cal. Also from Penchetta. The gun tested on is a 22 Wildcat. Obviously 2 of these are 22 and 2 are 25 so it is what it is. The Huggett and the Weihrauch both have internal baffles and sound deadening. The FX is just baffles and The one from Neil is just a can with sound deadening. No baffles. There was a problem with alinement earlier that has been dealt with so there is NO clipping. All 4 move the POI from POA around to different spots from 3/8 to 1/2 an inch at 50 yards, but then all 4 stack pellets consistently at their POI. I have no idea why this is. Maybe someone more enlightened can explain it. Have not run them all over the crony to see if each has it's own effect. 15 deg outside. In sound deadening there is not a lot of difference, but it is discernible. The quietest is the Huggett followed by the Weihruch and then FX and NC are a toss-up. With the FX I tried starting at 5 cups down to just the ends with no cups. I could not really tell a difference between 3 and 5 cups and with just the ends and no cups I would estimate a 50% reduction in noise. For finish and just cool looks the Huggett takes it hands down. The biggest bang for the buck is the Weihruch from Penchetta at 115.95. But it has 1/2 inch female threads so some guns will need an adapter. I have been shooting the 22 Wildcat with just the ends of the FX moderator and the sound is completely acceptable. This keeps the gun really short, but I think I'm going to start using the Huggett and move it between the 22 and 25 Wildcat. The only other observation that I noticed was the moderators with the baffles had more of a dead thud sound and Neils unit without the baffle had more of a ping sound. Hope this helps