I'm very interested in this. I've been looking at silencers since MN legalized them, I had money set aside and the can I wanted picked out but starting down the legal road and looking into the price, finger printing and time I was about to go through for a metal tube became ridiculous to me and I happily walked out of a gun store with a nice 1911 instead.
These solvent traps have me interested, the price is at a sane level, tax stamp and finger prints still suck but waiting a few weeks instead of a year makes it a lot more enticing also.
How well do they work? I'm sure volume is comparable but how about accuracy and POI shifting, first round pop, etc....?