Depends on the type of soil you are trapping in. I started using disposable stakes with 18" of cable and quickly realized it was way too long. The areas i trap have very rocky soils. I now use between 12-14" of cable and have absolutely no problems with coyotes even budging them.
Andrew!! Again Depends on your Soil!! Bershire Makes a great stake, In all types. Soft ground, STD and Hvy Fox Hollow Makes a great one as well but more costly!!. We use mostly STD Bershire on our lines as when it gets bent up by hitting rocks etc. we can re bend it back. Hvy DTY breaks!! Fox hollow wont bend or break but too expensive for our cheap blood! We do use Fow Hollow on all of our drowner sets as they are the best to drive in deep water!! Fox Hollow is the best in our opinion But still use Berkshire as we are cheap!!