I admit,, I have no experience with GF dough's,, But you mention that, bread comes out dense.. So a litebulb (I know I spelled it incorrectly,, purposely ) pops into my head... Can you use Baking Powder in GF recipes??? I have made Irish Soda Bread, which is not GF, but it is also not yeast, or SDS. raised.They still end up very dense when baked.