A short and sweet video on my new diffuser design. You can see a sample of the light quality I'm getting with in the specular highlights and the texture detail in this Ladybug's shell.
Note: I originally cut the front of the Sto-Fen out because I was concerned about light loss. Since I'm relying on the flash duration to freeze as much motion as possible (to get sharp images at high Fstops) I didn't want to lose two full stops to the diffuser. But after a lot of experimentation with different diffuser plastics I am now using the whole Sto-Fen.