I posted some info about sensah shifters in this post:
Brake calipers for Sensah shifters
and my conclusion was that the brake cable pull of Sensah shifters is longer than traditional Shimano (or SRAM or Campy) shifters and is similar to new 105/Ultegra/Durace. This means they "might" be OK to use with V-brakes as these also need a longer cable pull than road, cantilevers or mini-v brakes. Anyone upgrading an old v-bake equipped hybrid or mtb bike to drop bars might want to give them a try before concluding the brakes will need upgrading.