joachimM, I'm sure most people here appreciate what you are doing, a lot. Many people are simply making suggestions to make your experiment more relevant to them. You don't have to grant their wishes.
But I sure, as PatM, would like to see what happens if you "un-bend" the sharp hook a little. You already have everything set up. Kindly just heat the tips of the sharp hook bow and make the angle slightly less, say 75 degrees, and test its speed, for us, please.