This is a di-mon cross using monokaryon liquid culture. The Great White Monster (GWM) dikaryon donates one of the nuclei to the Hillbilly monokaryon, thus forming a new genetic combination which is capable of producing normal fruits and spores.
Here is a video showing how it was done using my monokaryon liquid culture shot directly into a grain spawn bag. Same basic idea with an agar piece.
https://youtu.be/QYWc_TK6olA?si=ddumt_Hrt8nPvWCZ