I too have used the factory hood bumper location. The only problem w/ using that area is that alot of those hood pin kits come w/ a supplied backing plate, and that area is double wall.
Also whatever you do, do not use the cheap-assed torsion clips that the parts stores sell. (the 19.99-29.99 sets) The torsion clips fail if they are flipped too far and literally come out of their holes, The chrome plating sucks ass, and.....well,.. that's all