http://www.pensadosplace.tv/2014/04/21/how-to-use-filters-when-mixing-bass-itl-100/
 
When he shows low pass filters, it pretty much seems to hit what Alembic low-pass + q is doing.
 
Bradley

That was very interesting, thanks for sharing.

I think he speaks well to how you might incorporate an SF-2 to your tone processing chain.
 
Bones