Good reply, Eye.
Would you therfore consider that a controller who replies "No speed restriction" is leaving himself open to blame if the aircraft should exceed the 250kt/FL100 limit?
Is he saying
"I've got no requirement for you to maintain any special speed, bust the speed limit at your own risk."
or is he saying
"You can fly at whatever speed you like and I've said you can exceed 250kts below FL100.", even though we are aware that he doesn't have that authority, but he might not be.
Are we accepting the assumtion that if a pilot enquires "Any speed restriction?", then he is refering to the 250kts/FL100 restriction, or, is he saying
"Obviously I'm aware that I need to reduce to 250kts by FL100, but do you have any other restrictions for me before then?"
Are you with me