I picked up my new axis in .308 today, what size trigger spring do i need to purchase to get a 4-5# trigger? i do not have a trigger scale but my new trigger is very heavy! it is heavier than what the gun weighs (it wont go off by holding the weight of the gun on the trigger). i was going to just clip one coil off from the factory spring, till i read that doing that will make it have mushy over travel, so i want to do the 3/4" 10-24 socket head screw and spring mod, i for the life of me cant find online what size springs people are using. Thanks, Dennis