Sorry but this has to be said: Be More Careful Using Fair

[Ingulit]

>.>
After I read this I only used Fair in like 3 matches out of 30. I could never K.O. in the air.
But thanks for telling us/me, I don't want 30/31frames of "please hit me" time.

Short Hop > F-Air
Full Hop > F-Air
Double Jump > F-Air
Run Off Stage > F-Air

Are all safe. And I've used falling F-Airs as a nice wall to knock my opponent away on many occasions (yes, suffering the landing lag... and yes, sometimes/many times getting punished with a shield grab by Olimar). The landing lag is long, but it's an aerial after all; it's meant to do in the air, not crashing into the floor