I bought a Panthera compact hunter in .177 that came with a Donny Ryu moderator from the seller. The Ryu is smaller in diameter than the shroud and I knew I wasn’t going to use it, but I wasn’t going to tell him to NOT include it. Surprisingly, the little Ryu sounds better on this gun than my IA1200, my Fatboy, and my Donny FX. I’m not sure it’s quieter, but the tone is more pleasing than all of them. The only thing I’ve got that’s better in tone and also noise level is the big ole Ronin. Super stealthy isn’t the goal here, but something to take the edge off is. The Yokozuna seems appealing because of its modularity and the QD feature so it’s on the short list. Does anyone have input on tone comparison between it and the Ryu?