Looking to buy some aerocatch hood locks or non-locks for a replica carbon fiber stout hood. My question(s) are what is the difference between the locks and non-locks and can i use ANY aerocatch hood lock or is there any specific ones i should be looking for? also, if anyone has any, how exactly do theys work and why is it that you must your test laches over you original? Finally, any recommendations? Thanks, much appreciated.