I noticed on pictures of Nitro that the track changes slightly for the lift hill track. The cross bars arent \_/ shaped, but more of a ''-'' shape. Do all B&M's do this? I havent noticed...
If im not making any sense (likely,) then head over to
http://lserver.digitalspell.com:8080/photo/?dispsize=512&mode=view&album=Nitro&pic=DCP_1024.JPG to get a look at what I'm talking about.