Master Lock's BumpStop

[mh]

Are you guys ever reading other people's posts?

[Beyond]

Are you guys ever reading other people's posts?

Good job! You were able to discern what 1 in 4 means in terms of percentages.

We're far past that. I'm trying to figure out what they're basing those numbers off of.

[Beyond]

It says that it makes locks 4 times harder to bump. Is it true?

Well, if you don't use a hook to feel inside the lock, you don't know which out of the 4 pins in the back is the one which can't be affected by a "normal" bump key, so you need 4 differently cut "special" bump keys.
Or actually 2 on average.

Cheers,
mh

That would be applicable if there were only 4 pins.

http://www.bumpstopsecurity.com/ml-bump ... tech.shtml

[mh]

It says that it makes locks 4 times harder to bump. Is it true?

Well, if you don't use a hook to feel inside the lock, you don't know which out of the 4 pins in the back is the one which can't be affected by a "normal" bump key, so you need 4 differently cut "special" bump keys.
Or actually 2 on average.

Cheers,
mh

That would be applicable if there were only 4 pins.

http://www.bumpstopsecurity.com/ml-bump ... tech.shtml

There are usually 5 pins and it doesn't make much sense to modify the pin in the front as this would be quite visible; so it's 4 potential positions.

[Beyond]

And on the 4 pin padlocks?

[Beyond]

Even then, going by your number, your modified keys would need a near 100% accuracy on every bump key. Actually, you would need a 100% accuracy on every key.

Not to mention with the addition of padlocks going by your number, it would be 7/12 accuracy, not 1/4.

[rontgens]

I can't think of anything good to say

Why don't you ask Mr Masterlock himself because it seems everyone else will be wrong

Oops there I go I said something

[Beyond]

I can't think of anything good to say

Why don't you ask Mr Masterlock himself because it seems everyone else will be wrong

Oops there I go I said something

Stop making a big deal out of a genuine question and stop confusing actual debate with a personal attack on people.

[rontgens]

move along

[Beyond]

Lol, it seems as if when you guys can't carry along a debate, you use the "PERSONAL ATTAX ZOMG" card.

[rontgens]

next try might work

[rontgens]

Quoted from http://www.bumpstopsecurity.com/ml-bump ... tech.shtml

Bumpstopâ„¢ employs an innovative, patent pending design which utilizes a unique reverse rake tapered driver pin, high performance springs and tightly machined cylinder chambers. During a bump attempt, this solution prevents the tranfer of force from the bump key to the pins and blocks rotation of the cylinder - so the lock stays locked.

1. Unique reverse rake tapered driver pin.
2. High performance springs.
3. Tightly machined cylinder chambers.

That's 3 times more bump resistant...I'll let you find the 4th reason

[Beyond]

My only guess is that out of X number of tries, X number of bumps, with a NORMAL bump key (999 cut, filed shoulder, etc.), were successful. I don't think they took into account any modified keys. Then again, I've only seen 2 with "1" cuts as the last pin.

[Beyond]

Quoted from http://www.bumpstopsecurity.com/ml-bump ... tech.shtml

Bumpstopâ„¢ employs an innovative, patent pending design which utilizes a unique reverse rake tapered driver pin, high performance springs and tightly machined cylinder chambers. During a bump attempt, this solution prevents the tranfer of force from the bump key to the pins and blocks rotation of the cylinder - so the lock stays locked.

1. Unique reverse rake tapered driver pin.
2. High performance springs.
3. Tightly machined cylinder chambers.

That's 3 times more bump resistant...I'll let you find the 4th reason

Those are reasons why it's more bump resistant. Not statistics illustrating how they derived that figure.

[rontgens]

That would make 3 reasons why it's more bump resistant....making it 3 times more bump resistant.