Originally Posted by
acidfast7
Where I live (southeast UK), we recommend two D locks for bikes locked outside. No one wants the hassle of cutting two locks. One D-lock is really pushing it. Just use two as we say over here.

Currently I' using method #3 from the left - only sometimes #4.
So it seems I'm doing it wrong but I can't see why #2 is better than #3 and 4.
Can someone enlighten me please?