These guns with the stock sear spring will have a trigger pull in the 3.5 to 4.0 lb. range.
Add this upgrade with the adjuster all the way down and you will immediately have a trigger pull in the 2.5 to 3.0 lb. range. Getting better, huh? But that's all there is? The adjuster is all the way down and you can't relax the spring any further !? Nah!
So lets mod the mod, then... shall we?
Cut about two loops off of the spring on one end only. If you can't count loops, then just make it about 1/4" inch shorter. Re-install the spring with the freshly cut end of the spring DOWN. With the adjuster lowered all the way, cock the gun and dry fire it. If it will fire, then take the spring off and cut another loop off. What? Yes, we do not want the gun to release the hammer with the adjuster all the way down. Fast forward to you having the spring in with the adjuster down and the gun will not release the hammer. GOOD!
NOW... adjust the adjuster up while testing every 1/4 turn until it WILL release the hammer (dry fire). Dry fire over and over to make sure it will release the hammer every time. Adjust up in 1/4 turns until it does release the hammer many times in a row.
Congratulations! You now have a trigger pull in the 1.5 to 2.0 lb. range. Feels really good, huh? You are now about 1/2 the trigger pull of the stock trigger spring... and you have doubled the affect of the adjustable sear spring from approx. 1 pound of pull reduction to approximately 2 pounds of pull.
If that is too light for you, there is still more upward adjustment to go higher with spring tension and trigger pull. So, there is no harm done and we have not lost anything at all (except I am positive you just voided your sear spring adjuster warranty). Pity that. ;)
Oh, almost forgot: If you have a CCS (Crosman Custom Shop) trigger frame that has the adjustable trigger stop, now is the time to set it as close to the the trigger as possible without preventing repetitive firing. It takes the "slop" out of the trigger travel past the point of firing.
Less unnecessary movement = better grouping / accuracy. A repeatably predictable trigger pull that you can "get used to" and count on = better grouping / accuracy.
Next time we'll talk a bit about the finer points of cleaning and polishing and de-burring (Oh MY!).
Until next time... Have fun shooting!