I suspect it is a habit that has crept in too. The 'can't go down and slow down' thing is obviously true to a certain extent but what I would like to do if I know I will be holding is to use a vertical speed to arrange my descent to be exactly 150 by TIGER, say, wind the speed back and accept a slow decelleration to my selected speed. If ATC need a particular speed for spacing then fair enough. I just suspect there is a bit of over controlling happening. Just tell me what you require and I'll do it. If you don't really require something then leave it to me.
