I have a Discovery in .22 which I bought end of last January. I like the gun, and shoot it fairly well (sub 1 inch groups at 40-45 yards from a rest). It needed a barrel recrown and bypass cleanup out of the box, and shortly after purchase I did the "3 screw trigger mod." While I had the trigger group apart, I cleaned and lightly polished all the metal to metal (and metal to plastic) contact points, replaced the trigger spring with a much lighter clicker-pen spring, and even tweaked the sear spring just a little. Even with all that done, the trigger...well...still sucked.
While noticeably lighter, and needed a lot less travel; but was still creepy, stiff, and unpredictable. Also, the trigger would dig into my finger tip. I was placing my finger all the way down, right on the point of the trigger. Not comfortable! So I saw this "Alliance Hobby" trigger online. It is made out of brass and has a much broader, smoother shape to the trigger blade (and costs around $50.00!). I watched Bill Johnson's video on YouTube. In it he goes over the installation in detail, and also speaks to the benefits of the new trigger action.
So the new trigger arrived today...here is the old plastic trigger and clicker-pen spring compared to the new brass unit and spring:

The shape and profile of the "innards" are slightly different, and the trigger blade is OBVIOUSLY different (improved). Using a Lyman Trigger Gauge (for the first time, so my figures may not be totally accurate), My "original" trigger (with polish, lube, lighter spring, and three screw mod) showed a 5-pull average of 3lbs, 10.9oz. After the new trigger install (took about 15 minutes including some minor adjustment), I did three more 5-pull measurements. The first average was really high at 3lbs, 1.5oz. I fiddled with it a bit, as it seemed to be binding somewhat. The next two 5-pull averages were 2lbs, 14.5oz, and finally a 2lbs, 6.4oz average (a difference of 1lbs, 4.5oz?)!
While I found this pretty impressive, what is really telling is the trigger feel. I'm used to Low-end springers, so a 3+ pound pull of a trigger really wasn't that heavy to me. It was the creep/notchy pull (I attribute it to the plastic) that really made it hard to shoot my Disco accurately. This new trigger is set for a short pull, and breaks quite a bit more "crisply" than the old trigger set-up. Also, the shape and width of the trigger blade makes the pull seem not so much lighter, but so much smoother than the old plastic unit. I have only dry-fired the Disco as of now, but when I shoot it with the new trigger, I'll update with the groups I'm getting, and if there's any significant improvement. So far, so good!
While noticeably lighter, and needed a lot less travel; but was still creepy, stiff, and unpredictable. Also, the trigger would dig into my finger tip. I was placing my finger all the way down, right on the point of the trigger. Not comfortable! So I saw this "Alliance Hobby" trigger online. It is made out of brass and has a much broader, smoother shape to the trigger blade (and costs around $50.00!). I watched Bill Johnson's video on YouTube. In it he goes over the installation in detail, and also speaks to the benefits of the new trigger action.
So the new trigger arrived today...here is the old plastic trigger and clicker-pen spring compared to the new brass unit and spring:

The shape and profile of the "innards" are slightly different, and the trigger blade is OBVIOUSLY different (improved). Using a Lyman Trigger Gauge (for the first time, so my figures may not be totally accurate), My "original" trigger (with polish, lube, lighter spring, and three screw mod) showed a 5-pull average of 3lbs, 10.9oz. After the new trigger install (took about 15 minutes including some minor adjustment), I did three more 5-pull measurements. The first average was really high at 3lbs, 1.5oz. I fiddled with it a bit, as it seemed to be binding somewhat. The next two 5-pull averages were 2lbs, 14.5oz, and finally a 2lbs, 6.4oz average (a difference of 1lbs, 4.5oz?)!
While I found this pretty impressive, what is really telling is the trigger feel. I'm used to Low-end springers, so a 3+ pound pull of a trigger really wasn't that heavy to me. It was the creep/notchy pull (I attribute it to the plastic) that really made it hard to shoot my Disco accurately. This new trigger is set for a short pull, and breaks quite a bit more "crisply" than the old trigger set-up. Also, the shape and width of the trigger blade makes the pull seem not so much lighter, but so much smoother than the old plastic unit. I have only dry-fired the Disco as of now, but when I shoot it with the new trigger, I'll update with the groups I'm getting, and if there's any significant improvement. So far, so good!