Don,
Sosij is absolutely right re the SID.
On the PLTs, let us know verbally if you change speed by m.01 or more (I think I read that somewhere).
On the first day someone changed by M.07 without advising us. This lead to a BOS or near BOS as aircraft behind tried to catch up due to normal speed... imagine that.
The PLTs seem to work most days, but I have seen two days that were horrible.
Further on the Bias, I was 'growled at' by a 767 driver because I gave them 250K today and the following
VB Max;
he "why are we being made number two to
VB?"
me "You're not, you'll win"
he "we've just been slowed and
VB has max?"
me "You are sixty miles ahead, he can't catch you, but you can catch the preceding slowed 737".
Big picture people, it's very important.