Beast Mode Option:
With these two heads you can create the BEAST.
YAQI DE Safety Razor Head SC Intermediate
YAQI DE Safety Razor Head MELLON Mild
These two heads can combine to create a 3rd - The "Beast" Head
Giving you 3 Levels of Shave Profile.
View this video to see how.
The name "Beast" comes from the aggressive look of the open comb top plate and higher Shave Profile that the head has. It was aptly named by Youtube Shaving Reviewer "Kit" (check out his channel here) who first discovered the combination and how well it shaves.