Locks that work

OK, thanks. Yeah, according to bikeradar on the Fahg Mini...
Also according to bikeradar, it took "close to three minutes to sever" the Fahg Mini, but it took "a whole 4min 43sec" to break through both sides of the Abus Granit X-Plus 54. So isn't the Abus more secure and the better choice? It is cheaper, lighter, comes with a bracket too. Is there something I am missing?

I was seriously looking into the Squire Urban Paramount (13mm shackle, excellent 6 pin tumbler). According to bikeradar, it took a "portable powered cutter" (implying a battery powered angle grinder) to break it "in a little under 20 seconds". Can the difference be really that big between two D locks that are both 13mm? I assume the Knog Strongman can also be cut through in a few seconds too. Can anyone explain that? Is Abus using some special steel alloy that is very hard or something?

There's a review of sorts of the Knog Strongman here:- http://cars-supercars.blogspot.co.uk/2012/05/bike-lock-comparison-by-men-journal.html 1:45 to cut through with a battery powered angle grinder - probably not using the best choice of disc though - someone here states that a Kryptonite new york only lasted just over a minute against a grinder and that's a thicker lock.

While they failed to crop it, they were only using 2' bolt cutters, so that was not much of a test at-all - in fact only 1 lock they tested cropped, and that was a TiGr.