This is my magnetic drain plug after about 3k miles on the oil that was drained. I've been using the magnetic plug for about 2 oil changes now. I cut open the filter and noticed very small, fine silt-like metallic shavings in the oil from the filter and the media once I cut the filter open. Is this a normal amount of metal that one would expect or should I be expecting my cam and motor to go soon? I put Kirban's valve springs on about 6-7k miles ago. I did NOT reuse the cups from the original springs. Car runs smoothly otherwise and I stay away from knock.