True Kim. I did some research on Driven HR2 oil, which is what I personally use, it has a zinc content of approx 1200 ppm, but their BR30 break in oil has a zinc ppm of 2800-3000, so the OP would benefit significantly from using a good break in oil as opposed to just an oil with a zinc additive to do his break in. And for my next cam change, Im going to run the BR30 to break it in as well.