They have some extraction and safety drift issues.
There is an excellent video by BH Spring Solutions about it. Evidently, the milled slide serations protrude into the milled extractor slot, restricting extractor movement and function. The extractor spring hole needed tl be reamed smooth to allow smooth spring function to apply the needed force to the extractor. Also, the SA 35 extractor width is also about 5% thinner than the Browning HP extractor, further contributing to extraction issues ( less rim grab).
There was also an issue with the safety and " operating system" ( safety/sear/hammer"). It can be moved up into the slide to unintentionally lock the slide, preventing racking the slide ( "condition 3" , empty chamber, then trying to load the chamber).
check out he BHSS sa35 evaluation vids.
Hopefully Springfield Armory can correct those issues.
SA should have just used the original blueprint and specs.
