Just finished watching a Robert Burke video on one of FB Groups, where he is coming out this next Tuesday, on his website with a replacement strut for the Classic P Series pistols. https://www.thesigarmorer.com/
The slight re-design helps overcome some P226 SAO problems where the rebounding Hammer, bottoms out on the Safety Lever, which can break and or distort, the Safety Lever Springs. It also smooths the lower leg, where it passes through the mainspring, where the stamped edges would "rub" the coils as the compressed, causing the grittiness feeling, on DA/SA versions.
https://www.facebook.com/robert.burke.12177/videos/10214589667791055/?t=36
The slight re-design helps overcome some P226 SAO problems where the rebounding Hammer, bottoms out on the Safety Lever, which can break and or distort, the Safety Lever Springs. It also smooths the lower leg, where it passes through the mainspring, where the stamped edges would "rub" the coils as the compressed, causing the grittiness feeling, on DA/SA versions.
https://www.facebook.com/robert.burke.12177/videos/10214589667791055/?t=36