10' x 10' Canopy : Round Stakes or Weighted Bags to secure?

If you were to put 100 pound bags on each leg, and the wind was blowing hard enough (Mild breeze) to exert 1 pound per square foot, on that canopy, it would not remain in place (10 x 10 = 100 square feet but since it is a canopy there is more area than that) .. I would screw anchors into the ground if at all possible. The kind you screw in hold my awning in breezes up to 50 MPH (or more so far) do not ask me how, but they have held for 2 years now.