by Varjeal » 27 Apr 2005 9:32
Most residential-type locks used "same-length" driver pins but it is not critical that they are. For all brands of locks there is a suggested length of maximum pin stack, and if you want to get super critical about it you can use "compensated drivers" to get that exact length.
However, as long as the spring is not being compressed to the point of damaging it there is really no need to be concerned about the length of the top pins.
Varying the length of the driver pins in a lock will change the pick feeling since more or less pressure will be placed on the spring at any time, and this in turn will transmit a different feeling while picking. If you have the pins, try swapping a few to see the difference.
*insert witty comment here*