I know. However we operate everywhere...and we're not going to be exceeding that speed until we're past at least 3,000' above field, which is going to put us out of the ATA and Class D anyway. We don't go past 200, which puts in compliance both ways.
As for below 10,000 and 250; we go for the clean speed, which for us is V2 +100, typically about 265-280 KIAS or so.