Two Pass Render Falling Block Entity?

[Draco18s]

It doesn't appear that there is a way to override the vanilla rendering of falling block entities and that renderer does not take into account two-pass blocks.

 

So I end up with this:

http://s24.postimg.org/nxzjt9jud/2014_12_19_15_29_04.png[/img]

The block is supposed to look like Cobblestone.  My block left, cobble stone right:

http://s15.postimg.org/nimb1uzqj/2014_12_19_15_31_06.png[/img]

 

Just another reason why I wanted to pre-multiply the original texture with an overlay.