Curious, Does any one know what the Spec for the stock Taurus Striker Spring ? 4-7 Lbs? and what is Optimum? Have used the HG , Lite Strikes, Have used the Glock 7 LBs No Lite strikes , but does not return to Full battery all the time , all so Have the Lakeland SS guide rod set up checking out another spring from my box of springs , assorted , has a stiffer pull ,( Not as stiff as the blue Glock spring ) on a DAO, this is good, and will try the Stock spring tomorrow , Happy shooting !!!