by dwkbb » 22 Oct 2005 7:50
Actually, the lock I have which has the lightest spring pressure is one that we never use. It is on the front door and we always enter the house from the garage. Because we enter though the garage, keys have rarely been in these locks. Of course I have picked them all plenty of time for fun and have found that the seem to "stiffen up" a bit as a result. I figure that the wear on the components which results is the cause. Lubrication then is indicated.