So whenever I plan a flight thru simbrief, it always tells me to fly at an odd numbered flight level regardless of the direction. I just want to ask if this is an actual irl procedure? This isn’t a very urgent matter, i just want to discuss. hehe.
Yea, the NATS have different altitudes that don’t necessarily conform to the east/west rule. Simbrief is correct.
Here you go, current updating NATs from the FAA: