Plenty of grip there is not here ...

I bought my bottom plate with a tarp to cover the ground anchor and attach the tarp on the ground.
But no matter what surface I pressed the hook, or have carved with the hammer, I realized:

- With the hammer you need not start here, the parts bend as nix
- One has a thick and solid earth have thus here at least "something" is just

For me it was nothing, I have the ground anchor every meter attached to the Plane ... No maintenance, a small gust of wind and away were se.
But 15 cm into the ground is not really much ... I had better have read ...