Hiplock make well above average bike security equipment, but one is in an arms race with the thieves. The D1000 lock is by far the robust lock, but it is heavy and fairly bulky, but probably the best way to ensure your bike is there, when you return. My beef is with the Insurance companies, the bike manufacturers and the Police who could all collaborate to do more to reduce bike theft. My last bike (as many of yours will be), was stolen by a professional, well at least somebody who makes their living from stealing bikes. The thieves were caught on CCTV, in Central London at the junction of a main road, who got out of their backpack a cordless angle grinder, to quickly 'liberate' my bike. It only takes 30-40 seconds. The bike which had a tracker went from Holborn, to Enfield to Cardiff and then two address in Birmingham. The organised crime gangs are clearly being allowed to get away with it. Had I had my new D1000 lock on the bike, it probably would not have been stolen, but anything less than the Sold Secure diamond level protection is pretty easy to steal, sadly.