J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Shopping Instruments, GPS Data on ST60 Speed display

Ahhh yes... ST40 dual vs ST60 tridata. That makes sense now. Still leaning towards TackTick T104 bundle. It's a bunch of money but I really like the idea of not leaving it out in the elements and the flexibility and expandability of the system.