You should also know that if you have locos just sitting on the layout, with sound and/or lights, they are drawing power. I remember somebody had 40 locos on his layout and his booster tripped when he tried to move a 3-unit consist. Figured out that all of the locos sitting put a big draw on the booster.
The other thing NCE told me at the show is that if you consist with just the new throttle and then plug it in, you lose the consist addressing since it's stored in the controller. When you plug it into the main layout, the info inside the controller is bypassed.
I think that's how it works...
Kennedy