I've been trying to modify a forester to create dark oak trees on the 9.6.5 snapshot, but have run into two problems.

One: Using the dark forest leaf block ID (161:1) doesn't even get recognized as a forester block.

Two: If instead I pick one of the non-used 18 blocks for a forester (in my case, 18:2 since 18:4-7 are used) it for some reason says it's creating a Jungle Forester, despite me giving it the proper title. I tell it to make trees of type 5 on the off chance you use tree-types from damage values as suggested here: #199 and not from this list http://preciousstones.shoutwiki.com/wiki/Field_Flag_Reference#tree-types, but it actually makes jungle trees.

Can dark oak be easily added? And is there a reason the block title/tree isn't recognized correctly in either of my test cases?

Thanks