Which one more better using light lid or heavy lid while cooking soba?

Using a light lid while cooking soba is generally better, as it allows some steam to escape, preventing the noodles from becoming overly soft and mushy. A heavy lid can trap too much moisture, which may lead to overcooking. The light lid helps maintain the right texture and ensures that the soba retains its firmness. Overall, a light lid provides better control over the cooking process.