Originally Posted by
fuzz2050
Most modern U-locks (at least that I've seen) use a different system again, now that people have lost faith in the Tubular pin-tumbler. Both Kryptonite and On-Guard, as well as Abus use Disc Detainer locks. They are a real pain in the ass to pick, and I don't think there is any nice workaround using stationary. They can be picked, but it again requires a lot of skill and a lot of time.
Your both right and wrong. You are right it takes a skilled person to pick a detainer lock but once that skill has been learned it won't take that person a long time to pick it, in fact a skilled person can do it in under one minute, a semi skilled person may take several minutes.