On Thursday, October 5, 2017 at 9:49:06 PM UTC+3, Paul Agnew wrote:
If ATC needs me at 250kts, regardless of altitude, they simply issue a clearance for whatever speed they need to fit their flow. They don't descend me below 10k for the benefit of the 250kt below 10k rule.

Hmm. If you stall clean at 130 you probably don't ever want to see less than 170 indicated. At 18k ft that would be about 240 true. So you could do 250 if asked. But not if you were at 30k ft.