My Bantam is almost painful on my thumb to open. I like the F&F on the knife, so I don't want to return it until I know if there is anything I can do to help it. Is there any way to lessen the tension on the lockback, without voiding warranty (or at least without ruining the knife)? Also on a side note, this knife has greatly reduced my hatred of 420HC (my only other knife with it is an Omni hunter with a fault HT). It seems to work perfectly for a light-medium use folder.