In article ,
rip wrote:

Steven P. McNicoll wrote:
"Matt Whiting" wrote in message
...
Why not?


Waiting for the ETA ties up airspace and delays other aircraft.


ATC won't clear anyone into your block of airspace until after your EFC
time to prevent two aircraft in IMC from using the same space.

Rip

Sure they will. You land, find a phone, call 1-800-WX-BRIEF and say, "This
is N12345, on the ground at KXYZ, cancel IFR".