So I watched the time trial of the Tour de Romandie. I was following it from Day 1. I also noticed that Bradley Wiggins was using an elliptical chainrings. I remember 20 years+ ago, Shimano came out these elliptical chainrings for their mountain bike cranks. It was very popular early on but they eventually dropped it and went back to the circular CRs. What's your take on the elliptical CRs, science or BS?