http://www.aaccanu.com/Default.aspxHoly crap - if you want to find out about suppressors....
This website has it all. The teaching aid part of this is quite in depth...
You will have to register but it's good basic info.
Note:
It does not talk about Trust or other ways to file. It's based on going the traditional individual way to get your stamp. And is not WA specific (well this is a Federal process) so it really doesn't matter.
Good basic info. Takes about 20 minutes from start to getting your diploma.
Here's another website:
http://www.silencerco.com/?section=Educ ... =Ownership