Based Manchester, UK - they have "speed profiling" on southerly SID's with 250kts to FL100 then 280-290kts to FL260
Manchester area then hand you off to London who want you up at FL310 50 before Midhurst - try doing that in a heavy A321!!
They then promptly cancel the Manchester speed restriction because they want you out of the way and would rather you make as high as you can get, regardless of speed, which makes a mockery of the speed profille in the first place.