GB series = symmetrical
Track = asymmetrical
GB2 is an awesome piece IMO, has midlane, predictable, arcing
surface is very tune-able
and its $115.00
I had the GB2 gold and didn't like it, most likely due to the layout i had on it, my fault for sure.
GB2 MVP is a bit longer and still same downlane motion also a great piece and is also $115.00