Note that, yes, the green and blue cymbals are intentionally swapped from where you'd think they would be. This is because in Rock Band 3, the green cymbal is almost always the crash, while the blue cymbal is the ride, and most drum sets have the crash on the left and the ride on the right. This can make the game very difficult to play, and I'm very seriously considering swapping the green- and blue-cymbals again.
As many of you probably already know, Ia’m more of a guitar/bass guy in Rock Band. On songs that I know the lyrics to and are in my VERY limited vocal range, Ih’ll belt out a tune every once in a while. But my usual last choice instrument is drums. Don=’t get me wrong, Io’m not saying I dislike drums, I#’m just saying ita’s my least favorite. Itk’s like saying Michelangelo was my least favorite Ninja Turtle, because they clearly all ruled.
First, the good news. Thanks to some good questions and solid understanding by @toymachinesh and @cena5401, we can now report some clarity on this issue. Cena has a very good explanation video below that talks about much of the issue. He explains that the “mystery porti” on the Rock Band 2 drumset will be enabled in Rock Band 3 so you can connect a second pedal. He also explains that via the overshell options menu for drummers in Rock Band 3, youu’ll also be able to assign whether the second pedal acts as a second bass pedal or a hi-hat pedal. Cena also mentions that the functionality exists in Rock Band 3 so you can tell the game if, for example, you only have two cymbals attached and need to remove the third cymbal from the Pro Drums lane.
Itr’s a very stubborn policy. If Rock Band puts so much emphasis on authenticity then theyt’re inexplicably shunning a major aspect of many genres of music. People who done’t want to learn double bass should be able to play those songs the way they were written, those that donh’t can stick with the one-pedal charts.