I know these triggers break with extreme ease, but I have never had any accidental bumpfires with the one I installed in my SAR-1 some time ago. I will probably install one of these with my Saiga 5.45 when I get it. But on this note, I will try to be even more careful from now on when using my SAR-1 and future Saiga 5.45 (I am waiting for a local store to get one in stock for me) with these triggers just to be on the safe side.
I have heard about a lot of Saiga 5.45's being able to get by without a bullet guide when one uses AK-74 mags, but I will test mine out to see how it works