@Richard, is the same noise, like a vibration.
I check the absorber, seems free of move.
There is a little green piece of plastic (maybe o-ring?), under the lever connection with the frame. I put 3 drops of silicon oil, 600 grade, (is a bit too viscous, at first seen) i put a drop of oil then move the lever and turn-rotate the pistol, then another drop, move and turn, then another one.
Then i left the pistol for 2 hours in his case, when after dinner went to range and magically the noise is disappeared, and after few shoot, the lever can be moved fast without any vibration. (maybe the silicon oil gained the hot range temperature, and go where it would have to go)
Also the lever became lighter to move and free to play.
The oil is named Eightball Shock Oil 600, Carson model sport.
Talking about the trigger.
The trigger: factory setting is exagerated heavy, and the sear engagement is settled as nice as an "iron gate". I must say that also if it feels not so good, when the shoot go out of ten ring, it's me, not the trigger.
First time, i followed Ruig instructions:
/viewtopic.php?t=9828&start=0&postdays= ... 10+trigger
The trigger became a little (little) nicer then inizially but was basically the same.
So after dinner i ask to my range companion (very good shooter) to check my trigger.
I explained what I had done, and he said me:
This is like a Formula 1, you must take it to the limit, you cannot expect to use it factory way. You are the driver, i'm the mechanical engineer, please stop to say things without meaning.
In less than 5 minutes, he changed the trigger setting, and now is absolutely amazing. Weight is legal over 500 grams without problems, and absolutely light and dry on sear engagement.
It's hard for anyone to reproduce the trigger without his experience.
To make an example, is more similar to electronic ones feelings: " it's quite difficult for me detecting when the trigger was breaking the final point, seems to me that the only way to shoot right way that trigger is follow letteraly the rules "aim, align and push the trigger attending shot breaks". I'm fear to shoot unsafe with that trigger. "
Is the same sensation, put you on the right way of shooting, with the previous setting (and with izzy one also) i can settle on the final stage, and sqeeeze when i see perfect alignment (i know is the wrong way).
With this trigger, like electronic ones, is impossible to settle on the last stage, you must continue to push because is so dry and and light you remain surprised every time. If you not jerk the trigger, every time is surprising release.
Best regards,
LukeP.