YABBUT tangle instructions

The other day I came up with a new tangle. It went through a few phases before I arrived at this one that I like. A while ago some family members were having a conversation and one said, "...yeah, but..."  I thought, "Yabbut? Yabbut! That would be a great tangle name." I wrote it down, waiting for the right time.

Here's how to do Yabbut. In step 5, note that the small black squares co-ordinate with the black triangular areas already created; they make the third point of the triangle.

There's a tile that uses Yabbut in my 'Walking the Line' post here. Here's another example:

Tangles: Dex, Drupe, Hibred, Knightsbridge, Up and Across, Yabbut