Looking at the new blue circle / half circle is better in my opinion. It allows you to look at 1 spot for stage / pre-stage. It seems easier.
Although it does not seem like a big deal (and I had really never thought about it with the old tree) looking from one bulb to the other did have you shift your eyes, while this new one does not.
I think it's pretty cool and an advancement.
To whoever said its tried and tested, why change? Darrell Zimmerman once spent some time telling me about the days going from a flagman to the christmas tree. He said there were arguments, fights, and they lost quite a few racers who tried it and never came back. There is also a story of a disgrunteled losing racer who ran the tree down i am told.
anyway, i like it.