I use the one in the tool kit....seems like any others have walls too thick to fit in the recess.
YES! i have yet to find one tha twill work so i can torque properly, tool kit one works great...
general rule of thumb for toqure that i read was
1/4 turn for old plugs (crush washer already crushed) 1/3 - 1/2 turn for new plugs ONCE the plug barely touches the head.