The best Redhawk triggers...
come from polishing the surface of the single-action sear(both hammer and trigger, and adjusting the depth of the SA notch on the hammer itself. It is a delicate balancing act which must be accomplished w/o substantially altering the angle of the engagement surfaces. Screw it up and you get a revolver that will "push off" from full-cock with less than ten pounds of thumb pressure. A new hammer will usually correct this, but a good Redhawk SA trigger job is best left to an accomplished smith. The results are usually worth the money.
You can have him/her install a trigger stop at the same time if you are so inclined. This is one thing that the Ruger SA'a and DA's both need for best accuracy. Just make sure that you emphasize that you do NOT want the damn thing working loose and tying up the gun. I installed mine by drilling through the lock port in the rear of the trigger guard assembly, tapping it for 8-32 set screws, and then using opposing set screws to limit overtravel. The whole works was baptized in Loctite Red before the final adjustment, and after a suitable number of 300 grainers at 1325 fps it remains unmoved. It is much easier to shoot well with the SA overtravel gone, and the DA pull is still sweet as ever. I'll call that a success story.
I'm not one for monkeying with factory springs, or replacing them with aftermarket jobs that are ridiculously lighter. This is another balancing act that can and often does result in light primer strikes, and misfires. The gun needs to work, first time, every time, always- or you're worse off than if you didn't have one at all. At least without a gun you'll likely stay out of situations where you might need one.
PS- The "Poor boy" trigger job for the Ruger SA's simply reduces the amount of trigger return tension by about half. It does nothing to correct sear engagement surface roughness, contact surface depth, or trigger overtravel. If your revolver has a heavy, gritty, stagey trigger before this alteration it will simply have a lighter, gritty, stagey trigger afterwards. Still, many are satisfied with the results. This just tells me that the Ruger factory SA trigger is about twice as heavy as it needs to be to start with.
Is it safe? Depends on your ability to leave the trigger untouched until the moment of firing, just like any other gun. It will simply fire with less pressure afterward, so a 'mistake' will maybe be a bigger one. This is why Ruger puts the garage-door springs in their triggers in the first place.