I just got my LCS SK-19 in 25 caliber and have been really enjoying it. It is definitely louder than my 25 Vulcan that uses a DonnyFL sumo. Anyone running an aftermarket moderator on there LCS? If so, what are you running and how much of a difference did it make. I'm aware that I need to purchase an attachment and wanted to make sure it did not cause any malfunctions of other rifles. Any info would be appreciated.