I got bit by the bug to look into a suppressor when I heard that Ruger was releasing threaded barrel Mark IIIs at SHOT. Today Davidson's sent me an email that they had 78 in stock . . . I was tempted and ordered one. (I saw they sold out in about 15 minutes). So, I saw there were some people posting on this about a year ago, but I'm wondering will Multnomah County Sheriff Staton sign form 4s? Does anyone have any recent experience on this? Or, should I plan on going the trust route? Also, does anyone have any experiences with some of the different .22 suppressors on the market? From what I've read it sounds like the Gem-Tech Outback II, the Silencerco 22 Sparrow, and the SWR Spectre. It's my understanding that these all disassemble for cleaning. Any strong opinions on any of these? Are there others I should consider? Avoid?