Zonoma,
Thanks for the insight, always good to hear a little bit more detail about what you folk are doing. One thing however is that you said you say 'when able'. I assumed from the thread title that you were using 'on transition'. This makes all the difference and I would certainly fly the requested speed as soon as possible if told to 'when able'. I do not understand the logic if others are speeding up on a mach number and claiming that they are not 'able' an IAS until transition!