This is the second part in our series of reviews of training options for obstacle course racing in Southern California; last time, my friends and I hit up MROC in Oceanside; this time, we move inland to Fallbrook, and went to play with Nicole Kifer at Platinum OCR. The contrast between the two couldn't be greater. The first is in a formal and compact gym space behind a mini-mall; Platinum OCR is an outdoor obstacle course and training center built by Nicole and her family on her brother's 7-acre plot of land.