The new stunt track challenge

Here is the beginning of my new stunt track challenge I hope to run at my next race.

Made loop braces out of 1x6's, fits right between the ridges on the bottom of the track, didn't even need tape or velcro.
90% of the cars I tested made it through. Then there is going to be a hump where the faster cars will actually get airborne then I'm thinking a final jump at the end through a ring of fire...with real flames! ok maybe cardboard flames.