ill try tht but it didnt seem like there was anything to close to the board that would set it off, but challenge five was a little tricky, but i realized what it was telling me to do and what i did wrong.
First u spine transfer, which u just lift up the back of the board up slowly when u reach the part of the ramp where u start to go upward. then ull go on the other side of the ramp.
Next, when u approach the thing u have to grind, ollie and then lift the back of the board again when ur grinding and u'll perform a nose grind. then ollie again after u nose grind to the right into those waves to ur right,
Lastly invert off the one ramp at the end of the waves, which u do by covering the front sensor mid way between going upward on the ramp.
57.39% Done with Seriously 3.0 (As of 1/23/12)