Locks that work

.....Re the Hammerhead, if you want one to test I can send you one we've got here FoC if you PM me your address. I might take the liberty of including a few links of our 'Protector' chains so you can see what you think of them, too :-)..

Unfortunately, I'm not an engineer, so do not have the means to test them. I am a security professional, that normally works within a corporate environment - designing and implementing security procedures for large companies. This thread was just a community spirited effort on my part.

I can acknowledge that when I first started compiling info for the thread, your company was one prominent source of comparative information. I trusted it, and was right to do so.