If it ejects more than 4 meters then your recoil spring is weak
Except for batteries, which run out quickly, I have not seen such phenomena at our club.
in CZ TSO trigger is about 1 lb in many of them and it's comfortable for use. but this guns have bigger pre travel and wider trigger than any 1911 guns. and most important thing that cz don't use sear leaf spring.
i think that 1.5 lb is very good trigger for any 1911/2011 gun that use leaf spring.
since i don't use L.S. i can use liter trigger set. but i found that 1.5lb is o.k. for me.
I have seen several such works. But unfortunately the shooter checks and calibrates them every week. The reason is that I have seen several times how they were disqualified in competitions for automatic fire or stopped during training because the gun fired bursts.
From the experiment I did, the trigger system of the 1911 does not function reliably over time with the trigger weights of less than 700 to 650 grams and below. sear leaf spring not always react . This is the reason I perfected and it works on one of my gun with 550 grams since 2018 without change and in other gun with 650 grams.
In 2018 when I spoke with Shay he told me that he manages to make a trigger of 1 lb but it requires a lot of time. And I don't know how long it will last until there are hammer falls.
Better that way. Because according to the amount of screws that break in the SH2 plates in the models, which are ready for optics, then it will remain without.
At the time, when I used to compete, I prepared 3 open guns. One for training and 2 for competitions. In 20 years of competitions I only once needed a replacement when factory 9mm IMI ammunition blew my barrel chamber.