How much do you use when using your DE/SE razors. I'm talking about headshaving by the way as the product description seems to apply only to face shaving. I would think one would use a drop or two more.
I use four to five drops and that covers my whole head and face. I like to apply warm/hot water then apply the oil and finally a second application of hot water.
Regardless of whether I use the ATX or the DE, I always mix 4-6 drops of Shave Secret with 1/2 cap of Headslick in my scuttle. Makes a very nice lather (applied with a brush, of course), not to gooey or soupy. This usually lasts long enough to do the entire head and face.