Enduro Ride: Recoil + Twilight Zone Mammoth Mountain Bike Park

Checking out the new features in the Mammoth Mountain Bike Park in California. Sorry for the bad/absent audio. My GoPro Hero4 black is defective, intermittently not recording good audio. It seems like the microphone has a bad internal connection. There’s crackling and popping when the audio comes back. I’m desperately waiting on the customer support to authorize a warranty replacement.. I’m on the 6th email with 2-3 days delay in response time between emails... They think I’m not using it correctly *sigh*