I finally decided to try and figure this AHG program out. It seems all the higher rated coasters on here use that or one of the othere many programs available. I've read all the threads discussing some of the issues but I'm still having a real problem with a cobra roll. Everytime I run it throught the AHG everything turns out fine except the part between the 2 corckscrew sections. That pat seems to always be strangely banked regardless of what color I make that section of track. Anyone have any suggestions?