Has anyone done the NFA Class 3 for an SBR or Suppressor? If so, it looks like going the "Trust" route is the only way in a metro area. Anyone have any experience going through the process? Sorta considering the SERBU Super Shorty or a .22LR Suppressor. Super Shorty is a 3 round shot gun that is considered an AOW (All Other Weapons) and only requires a $5 tax stamp and the normal wait and a Gun Trust (or Police Chief sig). Watching Youtube videos on specifically the Silencerco Sparrow SS is simply amazing at the noise reduction on a .22LR even using normal bulk ammunition (vs. subsonic). Dang suppressor is $200 tax stamp, the process wait, the cost of the $350 suppressor, and the cost of the trust (upwards of $350). Plus the "Host" gun or a threaded barrel made for one already owned. Expensive novelty!