Locks that work

Forgive me i'm new to this, whats the deal with armour cable locks?? i've a Magnum Plus 110cm Armoured Cable Bike Lock got it after learning the hard way with an old bike, bike not been stolen since. got a new bike now.... is this lock no good??

Even among cable locks this is considered a poor model:
http://www.bikeradar.com/gear/category/accessories/locks/product/plus-110cm-armoured-cable-16469
Funnily enough it is rated class A,B,C for Endsleigh insurance, i.e. their highest rating.

Ideally I'll get a Fahg soon too, so that and the Evo Mini will make a good Hackney set-up. And all compatible with the same bracket. I've got Pitlocks on wheels and seatpost too. Maybe headset lock next too.

I use the Fahg mini and Evo mini the same way as edscoble, it's a good setup. But the Fahg Mini won't fit on the Evo bracket. You are better off ordering a Fabric Horse holster.