Has anyone had any experience with the Abus locks? I was thinking of getting the Abus Steel-O-Flex Granit X-Plus 1050 lock to complement the big heavy chain lock i've got from Bike Guard. However the bike store guy tells me that the Bike Guard locks aren't that great and now i wonder if i should replace that too. I basically normally leave my heavy lock where i lock it up (in a very visable spot in the city with cameras), and now i want to have a second good lock for when i go to the movies or somewhere else.
Also i was thinking of getting the pin head quick release replacements, so that my wheels and seat can't be taken off. I was thinking of not locking the wheels and just using the chain to lock the frame and one wheel. Do people think the pinhead system is reliable? they say that each key is unique, but i wonder if they can just be taken off with a strong grip with some pilers (or i guess someone could just saw them off with a hack saw and replace the quick replacement thingy).