The Key to Upwind Performance | Dynamic Tuning

With the help of smarttune load sensors from Cyclops Marine, North Sails One Design Expert, and J/70 World Champion Charlie Cumbley explains how the dynamic balance of upwind performance hinges on forestay load.

We were one of the first boats that used the smarttune from Cyclops Marine, and did some analysis after our races in the Med a year ago. More on our experience here.