I have used many brands of needles. Singer and the various Chinese brands vary. Some work great, some don't. Schmetz, available darn near everywhere, Organ, Muva, and several other European brands are quite good.
There is a thread here in the Vintage Machine section or the Machine Shop where a poster commented that most Berninas use the System 705H needles. A few use System 705? The Schmetz needles you see most common are the 705H version. "IF" I remember what I read the other 705 was a wee bit different in length. I'd link to that thread except the URL is on my other hard drive that failed.
My wife has been using a Bernina 930 for about 12 years now. She says she's used just about every brand of needle and doesn't remember any problems with any of them.
Joe