Hey LockDoc...

[davepl]

Three questions for you that might be of broad enough interest that I'll post as a thread rather than bugging you in a message.

First, why are GM locks so hard to pick? My locksmith friend (20 years ago) said they had a "slider" that prevented it. But then why wouldn't all locks have that?

Second, any idea how many pins and how many depth options there are? Like if there are 5 pins of 6 possible depths that's about 15000 possible different keys.

Lastly, my Dad had a 1961 GM key (the older style head) and he said that just by the luck of the pin depth setup on that key it had about a 25% chance of opening other cars if you jiggled it.

I don't think he was talking about a bump-key style approach but do you have any idea what he might have been talking about?

Thanks!