Well the definition of HFLC is technically 70%+ fat and carbs lower than 50. I won't be aiming for 70% every day, but it will allow me to add extra protein if needed for lifting. Today I ended up with 74%fat, 9%carb and 17% protein.
The formula in the first post of the EMF thread gets people to around 75% fat which seems to work well for most. For me, the 80% was an anti binge experiment. I have come to believe that a range is best for me within the HFLC macros and my calories.