OPINIONS PLEASE: Best High Security Padlock

[Jailer]

I would like to hear from all of you experts, long time smiths, hobby pickers, and anyone else who might light to contribute.

Which HIGH SECURITY PADLOCK is the best and least compromised of all made in the last 50 years ? I have considered some models of the Sargent and Greenleaf and Hi-Shear as the top two, but would like other suggestions or possibilities.

Having study, disecting, and looking at the overall function and relative difficulty of cutting, punching, sawing, grinding, picking, and drilling, it seems to me that the Hi-Shear LK1200 made back in 1982-1983 would be extremely difficult to improve upon. Those things are literally built like modern warfare machinery, a solid cast casing machined from 4 directions with 3 of those plug welded, and a free spinning hardened boron shackle cored with carbide to resist any kind of cutting. I'm sure there are more pick-resistant mechanisms, but for brute strength, I think my vote is with the LK1200.

http://www.flickr.com/photos/linux4all/ ... /lightbox/

[Wizer]

Any Abloy exept Ava.

[boggif]

Abloys are great against picking but not extremely good against a massive distructive entry.

[averagejoe]

The problem with the Hi Shear is that when the door(s) it is attached to became misaligned or one started to droop it would put pressure on the shackle, effectively trapping it, leaving you unable to unlock it since the key retracts the shackle. The keys would break from t he force being applied. That is a reason they stopped using them.

How about an 833/951 with an Abloy Protec cylinder in it? No anti drill disc as they arent exactly made... yet..
http://www.youtube.com/watch?v=37EItmPJYBQ

[lockr]

How about an 833/951 with an Abloy Protec cylinder in it? No anti drill disc as they arent exactly made... yet..

Nice =) Gets my vote!

I'd prefer a hybrid solution, such as this S&G, or maybe an Abus 83/80 with an Abloy or Bilock cylinder and a custom shackle guard. Some of the higher-end Abloys, in particular the PL362, also fit the bill.

[ARF-GEF]

How about an 833/951 with an Abloy Protec cylinder in it? [/url]

+1 (As long as it's done nicely.)

[averagejoe]

Also I think the title should be changed to "Which is the best high security padlock". I thought at first he was wanting info on BEST brand high security padlocks such as this one :

[ARF-GEF]

Has anyone tried putting an EVVA MCS into either S&G 833 or 951?
Is it even possible?

For me that sounds like a very interesting pairing.

[Jailer]

Also I think the title should be changed to "Which is the best high security padlock".

Same play with words would apply. Except this time, the answer would be "the one on the left".

[MBI]

Also I think the title should be changed to "Which is the best high security padlock". I thought at first he was wanting info on BEST brand high security padlocks such as this one

Yeah, I noticed the same thing. It's taken care of now.