Obviously, I didn't mean it never evaporates. But one's vagina is not generally bone dry. There is always some moisture there. So, if I am examining it and it immediately dries on my finger, then I assume it is not really CM.
I never said immediately. I said if it sorta evaporates after a few seconds [of rubbing between fingers].
Well, personally I would not record it as CM, if it sort of evaporates after a few seconds.
This is the part of TCOYF to which I am referring, where it says "slight dampness that dissipates quickly" = dry:"Recording Your Observations in TCOYF
After making these observations throughout the day, record the most fertile quality cervical fluid observed. Most cervical fluid can be described as follows, from the least fertile to the most fertile:
Dry: No fluid is present or there is just a slight dampness that dissipates quickly on exposure to air. The equivalent vaginal sensation is "dry," as well.
Sticky: Not truly wet, feels sticky or tacky to the touch, perhaps similar to rubber cement. May be opaque white or yellow in color, although it is also clear sometimes. The equivalent vaginal sensation is "sticky".
Creamy: Has a smooth feel similar to hand lotion, typically cloudy in appearance, either white or yellow. Is sometimes wet and watery, although it is very thin and doesn't stretch much. The equivalent vaginal sensation is "wet" or "moist".
Eggwhite: Typically clear, but may have brown, bloody or cloudy streaks. Similar to raw eggwhite in appearance and feel, very slippery. May stretch from 1 to 10 inches. The equivalent vaginal sensation is "lubricative".