Couple friends of mine just bought their first suppressors (via trust) over the past few months and only last week were able to submit their form 4's to the ATF between waiting on Form 3's, shipping times, checks clearing, and actually being able to make it over to the FFL of their choosing to fill out the paperwork.
Me? I decided to jump into it as well (also via trust) and called the same FFL, told him about what I wanted to purchase from SS, he was set up as a dealer in less than 24hrs, I ordered my suppressor a week later and everything was taken care of for me in 10 minutes form adding everything to the shopping cart to uploading my trust, etc.
I gotta say I'm nothing but impressed and my buddies are quite jealous that we'll all most likely be getting our suppressors at the same time only mine will have taken far less of a wait.
I'm impressed with the model so far. Thanks!