Class III is on my list as well. As soon as the unConstitutional '34 NFA, '68 GCA, '86 FOPA, and the '89 Import bans all go the way of the Jim Crow laws.
To support "Class III", become an active member of NFAOA.org.
The resources section there documents a LOT more abuse than this thread is discussing!
We are working on issues and bills that NO other RKBA group will touch.
http://www.nfaoa.org