The thing I do like about leaf spring models is being able to adjust the length of the strain screw, so it only tensions enough to fire reliably. Before the screaming and hollering starts, once I figure out how much tension fires it every time I shorten the screw so it provides a bit more tension than that when it is tight.
But, Wolf will sell you 10 8# J frame mainsprings for just $20. The also has a good assortment of J frame rebound spring. Before the lecture starts. I away err on the side of make sure it goes bang every time and the trigger snaps back.
If I do get to going on a stick triggered gun, or one that don't work quite right first I make sure the hammer and trigger don't drag on side plate or frame. Then I remove any high spots where rebound slide rides, on trigger and hammer bosses. A pieces of brass round stock with holes that fits over hammer and trigger stud with a bit of valve grinding compound will shine up the bosses inside the frame BTW. You don't have to polish out all the low spots, just get rid of the high spots. A return spring that snaps back the trigger well. A Make sure the end of the yoke tube is square and smooth. You have .001 or 2 endshake. Decent B?C gap?The ejector rod and center pin are straight. Does the tip of the rod have a slight bevel to its hole and does the barrel lug move back and forth nicely. Cycle the trigger with the hammer out and make sure the hand slips by each ratchet with no binding. If the center button and face on the ejector ratchet smooth? I do not mess with sears except the DA "fly" if I need to. Put it together with just a touch of oil on bosses, studs, rebound slide, yoke tube.
But, having a trigger finger that is an honest 1" wide at the first joint on a XXL hand the amount of pressure needed to stroke a DA trigger isn't my problem and as long as it is smooth and not stupid heavy I am good.
When I shot PRC in my late 20s and early 30s I went all nuts, polishing, even jeweling, tried putting some fine valve grinding compound on stuff and cycling, clipped springs, Put a rubber stop on back of trigger. Different grips, various sight schemes.
I was better off spending more time reloading and shooting. The very best thing I did was buy a model 18 and shoot the snot out of it every chance I got.
