glad i caught this thread
i fly thru your airspace often and i have no problems at all adjusting to constraints/restrictions given by ATC. sometimes there is an airspeed restriction coupled to the V/S.
and in icing conditions as well! i might add...but if given sufficient time to conform then all will be well. we take it as a challenge esp after sitting there for 6 and a half just monitoring CRT!
if the instructions are, 'to leave now and give me a rate of....' i presume the ATC has very good reasons to get me out of that band of air.
may i ask a Q?
if given a normal descend clearance, do i need to ask,'pilot's discretion?' or is it asap. is this an ICAO standard? thks.