hold me back...
I like the idea that Fastsky
had about the pit area stations having built in hold downs but would be curious if there is concern for a trip hazard. I'm all for it myself.
I use at the present a device made by one of the hobby manufacture "can't remember if it was GP or someone else" but it is sold in the local hobby stores. Its a black painted 1/4" steel rod that has been bent it has two 1/4" X 10" bent steel that protrudes from the bottom and is used to stick in the ground. It then uses pipe insulation that fits down on both sides of the runners that your tail feathers but up against. This device is a swing away, all you do is back your plane up and then give it a tap and it falls.